What is the molecular formula of a compound with the empirical formula C13H19O2 and molar mass of 414.64 g?

Answers

Answer 1
Final answer:

The molecular formula of a compound with the empirical formula C13H19O2 and molar mass of 414.64 g/mol is C26H38O4.

Explanation:

To find the molecular formula of a compound with the empirical formula C13H19O2 and a molar mass of 414.64 g/mol, we first need to calculate the empirical formula mass. The empirical formula mass of C13H19O2 is (13 × 12.01 g/mol for carbon) + (19 × 1.01 g/mol for hydrogen) + (2 × 16.00 g/mol for oxygen), which equals 205.32 g/mol. Then, we divide the given molar mass by the empirical formula mass to determine how many times the empirical formula fits into the molar mass.

414.64 g/mol ÷ 205.32 g/mol ≈ 2

Since the result is approximately 2, we multiply the subscripts in the empirical formula by 2 to obtain the molecular formula, resulting in C26H38O4 as the molecular formula of the compound.


Related Questions

What do scientists mean when they speak of a phase or state of matter?

Answers

The mean whether is solid, liquid, gas, or plasma.

For the reaction shown here, 3.5 mola is mixed with 5.9 molb and 2.2 molc. what is the limiting reactant?3a+2b+c→2d

Answers

Final answer:

The limiting reactant is substance a because we need 8.85 mol based on the stoichiometry of the reaction, but only have 3.5 mol. Substances b and c have more than needed to react completely with a. Therefore, a is the reactant that will run out first, limiting the amount of product d that can be formed.

Explanation:

To determine the limiting reactant in the chemical reaction 3a+2b+c→2d, we first calculate the number of moles of each substance. We were given 3.5 mol of a, 5.9 mol of b, and 2.2 mol of c. Using the stoichiometric ratios from the balanced chemical equation, we calculate the amount of each reactant needed:

For a: (5.9 mol b) / (2 mol b) × (3 mol a) = 8.85 mol a neededFor b: (3.5 mol a) / (3 mol a) × (2 mol b) = 2.33 mol b neededFor c: Since the stoichiometric ratio is 1:1 with a, and we have 3.5 mol of a, we need 3.5 mol of c

Since 8.85 mol of a is needed but only 3.5 mol is present, a is the limiting reactant. To find the excess reactants, we identify the amount of b and c that would react with the 3.5 mol of a:

For b: (3.5 mol a) × (2 mol b) / (3 mol a) = 2.33 mol b would react, leaving (5.9 mol - 2.33 mol) = 3.57 mol b in excessFor c: Since c reacts in a 1:1 ratio with a, (2.2 mol - 3.5 mol) would indicate c is also a limiting reactant, but a runs out first

Learn more about Limiting Reactant here:

https://brainly.com/question/33417913

#SPJ12

For the reaction shown here, 5.7 mol A is mixed with 3.2 mol B and 2.5 mol C. The limiting reactant is . B

By comparing the mole ratios of reactants A, B, and C to their stoichiometric coefficients, we find that B has the smallest mole ratio, making it the limiting reactant.

For the reaction 3A + 2B + C → 2D, we begin by comparing the mole ratios of the reactants given: 5.7 mol A, 3.2 mol B, and 2.5 mol C.

First, we check the mole ratio of A: 5.7 mol A / 3 = 1.90.Next, we check the mole ratio of B: 3.2 mol B / 2 = 1.60.Finally, we check the mole ratio of C: 2.5 mol C / 1 = 2.50.

The limiting reactant is the one with the smallest mole ratio compared to the stoichiometric coefficients.

Since B has the smallest mole ratio (1.60), it is the limiting reactant.

Correct question is: For the reaction shown here, 5.7 mol A is mixed with 3.2 mol B and 2.5 mol C. What is the limiting reactant?
3A+2B+C→2D
a. A.
b. B.
c. C.
d. D

When metals bond with nonmetals, electrons are transferred from the metal to the nonmetal, resulting in the formation of an ionic compound?

Answers

Metals lose electrons to become cations, and nonmetals gain those electrons to become anions, with the electrostatic attraction between these oppositely charged ions forming an ionic compound.

When metals bond with nonmetals, electrons are indeed transferred from the metal to the nonmetal, resulting in the formation of an ionic compound. This process involves a metal atom losing electrons to become a cation, which is a positively charged ion, while a nonmetal atom gains those electrons to become an anion, which is a negatively charged ion. The electrostatic attraction between the opposite charges of these ions holds the compound together.

For example, in the formation of sodium fluoride (NaF), sodium (Na) loses one electron to form a Na+ cation while fluorine (F) gains one electron to form an F- anion. The resulting compound, NaF, is stabilized by the strong attractions between the positively charged sodium ions and the negatively charged fluoride ions.

When a fuel burns, what determines whether co or co^2 will be produced?

Answers

If it is incomplete or complete combustion. Normally the problems question with tell you.

EX:
"In the presence of plenty of oxygen" is complete combustion
"Not enough oxygen present" is incomplete combustion

Whether CO or CO₂ is produced when a fuel burns depends on the availability of oxygen; ample oxygen leads to CO₂, limited oxygen to CO. Stoichiometry and bond energies are also important factors in combustion reactions, which release energy used in power and electricity, while also impacting the environment.

The production of either carbon monoxide (CO) or carbon dioxide (CO₂) when a fuel burns is largely determined by the availability of oxygen during the combustion process. In a reaction where there is ample oxygen, such as 2C₈H₁₈ (l) + 25O₂(g) → 16CO₂(g) + 18H₂O(g) + heat, the carbon in the fuel is fully oxidized to CO₂. However, with a limited oxygen supply, incomplete combustion occurs, leading to the production of carbon monoxide. For instance, 2 C (s) + O₂(g) → 2 CO(g) demonstrates how limited oxygen creates a predominance of CO. The precise stoichiometry of reactants and the strength of chemical bonds involved in the reaction play a critical role in the energy released during the combustion process. When we burn fuels such as paraffin, coal, propane, and butane, these chemical changes release huge amounts of energy that we utilize for power and electricity. At the same time, carbon dioxide (a greenhouse gas) is released, impacting the environment negatively.

Geologist know that potassium 40 decays to argon 40, with a half life of 1.3 billion years. analysis of a hypothetical sample of granite reveals that 75 percent of the potassium 40 atoms have decyaed to form argon 40. what is the age of the sample of granite

Answers

First let us calculate for the rate constant k from the formula:

k = ln(2) / t0.5

where t0.5 is the half life

k = ln(2) / 1.3x10^9 years

k = 5.33x10^-10 years-1

 

Then we use the formula:

A/Ao = e^-kt

where A/Ao is the amount remaining = 25% = 0.25, t is time

 

Rearranging to get t:

t = ln(A/Ao) / -k

t = ln(0.25) / (-5.33x10^-10 years-1)

t = 2.6x10^9 years

Answer : The age of the sample of granite is, 2.6 billion years

Solution : Given,

As we know that the radioactive decays follow the first order kinetics.

First we have to calculate the rate constant.

Formula used : [tex]t_{1/2}=\frac{0.693}{k}[/tex]

[tex]1.3\text{ billion years}=\frac{0.693}{k}[/tex]

[tex]k=0.533(\text{billion years})^{-1}[/tex]

Now we have to calculate the age of the sample of granite.

The expression for rate law for first order kinetics is given by :

[tex]k=\frac{2.303}{t}\log\frac{a}{a-x}[/tex]

where,

k = rate constant  = [tex]0.533[/tex]

t = time taken for decay process  = ?

a = initial amount of the reactant  = 100 g

a - x = amount left after decay process  = 100 - 75 = 25 g

Putting values in above equation, we get the age of the sample of granite.

[tex]0.533=\frac{2.303}{t}\log\frac{100}{25}[/tex]

[tex]t=2.6\text{ billion years}[/tex]

Therefore, the age of the sample of granite is, 2.6 billion years

Write an equation that shows the formation of a copper (I) ion from a neutral copper atom

Answers

Cu ----> Cu(+) + 1 e-

Answer: The equation is written below.

Explanation:

Copper is the 29th element of the periodic table having electronic configuration of [tex][Ar]3d^{10}4s^1[/tex]

When an atom looses an electron to form positive ion, it is called an oxidation reaction.

Copper will loose 1 electron to form +1 ion. The equation for the formation of copper (I) ion from neutral copper atom follows:

[tex]Cu\rightarrow Cu^++1e^-[/tex]

Hence, the equation is written above.

What would be the formula for an alkane which contained 42 hydrogen atoms? C____H42 20 21 22 23

Answers


C20H42 20 is the answer.

Answer : The formula for an alkane which contained 42 hydrogen atoms is, [tex]C_{20}H_{42}[/tex]

Explanation :

The general representation of alkane is, [tex]C_nH_{2n+2}[/tex]

As we are given the number hydrogen atoms which is equal to 42. Now we have to determine the number of carbon atoms.

As,

[tex]2n+2=42\\\\2n=42-2\\\\2n=40\\\\n=\frac{40}{2}\\\\n=20[/tex]

Thus, the number of carbon atoms is, 20

Therefore, the formula for an alkane which contained 42 hydrogen atoms is, [tex]C_{20}H_{42}[/tex]

a 0.784 g sample of magnesium is added to a 250 ml flask and dissolved in 150ml of water. magnesium hydroxide obtained from the reaction required 215.0 mL of 0.300 M hydrochloric acid to completely react. How many moles of Mg were used?

Answers

The chemical reaction involving Mg(OH)2 and HCl is:

Mg(OH)2  +  2HCl  -->  MgCl2  +  2H2O

 

So we see that for every 2 moles of HCl, 1 mole of Mg is reacted.

Calculating for moles HCl:

moles HCl = 0.300 M * 0.215 L

moles HCl = 0.0645 mol

 

The moles Mg then is:

moles Mg = 0.0645 mol * (1 / 2)

moles Mg = 0.03225 mol

0.03255 moles of Mg is used for neutralizing 0.3 M 245 ml [tex]\rm Mg(OH)_2[/tex].

The chemical reaction of the reaction of Mg with water yields Magnesium hydroxide.

The neutralization reaction of [tex]\rm Mg(OH)_2[/tex] with HCl will be:

[tex]\rm Mg(OH)_2\;+\;2\;HCl\;\rightarrow\;MgCl_2\;+2\;H_2O[/tex]

For neutralizing 1 mole of magnesium hydroxide 2 moles of HCl are required.

The moles  of HCl in the question are:

moles = [tex]\rm molarity\;\times\;\dfrac{1000}{Volume\;(ml)}[/tex]

moles of HCl = 0.3 [tex]\rm \times\;\dfrac{1000}{215}[/tex]

moles of HCl = 0.0645 moles.

The moles of Mg required are half of HCl.

Moles of Mg = [tex]\rm \dfrac{0.0645}{2}[/tex]

Moles of Mg = 0.03225.

0.03255 moles of Mg is used for neutralizing 0.3 M 245 ml [tex]\rm Mg(OH)_2[/tex].

For more information, refer the link:

https://brainly.com/question/15618436?referrer=searchResults

Which actions are appropriate and safe when working with electrical equipment?Select all that apply. keep your station dry Pull on the plug, not the cord keep your station wet Wet your hands

Answers

keep your station dry
pull on the plug, not the cord.
hope I helped!

Explanation:

It is known that when working with an electrical appliance then your hands must be dry because otherwise an electrical shock might occur.

Water is a good solvent and electrons can flow through it easily. Also, your work station must be dry also as it might also lead to an electrical shock.

Your plug must be pull on because otherwise some amount of electric current will still flow into the circuit. And, there are chances of getting an electric shock.

Hence, we can conclude that actions which are appropriate and safe when working with electrical equipment are as follows.

keep your station dry.Pull on the plug, not the cord.

Calculate the number of grams of silane gas, SiH4, formed when 34.9 g of Mg2Si reacts with excess H2O.

Answers

Final answer:

To calculate the grams of silane gas, SiH4, formed when 34.9 g of Mg2Si reacts with excess H2O, you need to use the balanced chemical equation and molar ratios. Determine the moles of Mg2Si, then use the molar ratio to find the moles of SiH4. Finally, convert the moles of SiH4 to grams using its molar mass.

Explanation:

To calculate the number of grams of silane gas (SiH4) formed when 34.9 g of Mg2Si reacts with excess H2O, we need to consider the molar ratios between Mg2Si and SiH4 in the balanced chemical equation:

2Mg2Si + 4H2O → 4Mg(OH)2 + SiH4

From the balanced equation, we can see that 2 moles of Mg2Si react to produce 1 mole of SiH4. First, calculate the number of moles of Mg2Si:

Moles of Mg2Si = 34.9 g / (2 * molar mass of Mg2Si)

Then, use the molar ratio to calculate the moles of SiH4 produced:

Moles of SiH4 = Moles of Mg2Si * (1 mole of SiH4 / 2 moles of Mg2Si)

Finally, convert the moles of SiH4 to grams using its molar mass:

Grams of SiH4 = Moles of SiH4 * molar mass of SiH4

Learn more about Calculating grams of a gas in a chemical reaction here:

https://brainly.com/question/27642458

#SPJ12

A particle of gas travels at a speed of 2.44x10^5 inches/sec. How many kilometers per hour is this speed?

Answers

2.44*10^5inches/sec Convert inches to kilometers now: 1 inch = 2.54*10^-5 so: 2.44*10^5 inch * 2.54*10^-5 = 6.1976km 6.1976km/sec * 1800 = 22311.36 km/hour

A student titrates 25.0 ml of vinegar with 0.317 m naoh. the initial naoh burret reading is 0.15 ml and the final reading is 19.35 ml. what is the molarity of hoac in the vinegar sample?

Answers

NaOH = 19.35 - 0.15 = 19.2 mL 19.2 mL x 0.317 M = 6.086 millimoles NaOH 6.086 mmol NaOH neutralized 6.086 mmol acetic acid 6.086 mmol acetic acid / 25.0 mL = 0.2435 mmol/mL = 0.2435 mol/L Acetic acid was 0.2435 M

Final answer:

The molarity of acetic acid in the vinegar sample is determined by calculating the moles of NaOH used in the titration, which are equivalent to the moles of acetic acid, and then dividing by the volume of the vinegar sample.

Explanation:

The student's question pertains to the calculation of the molarity of acetic acid (HOAc) in a vinegar sample based on a titration experiment with sodium hydroxide (NaOH). To determine the molarity, we use the volume of NaOH added and the molarity of NaOH to calculate the moles of NaOH, which equals the moles of acetic acid due to the 1:1 stoichiometry in the reaction. The equation is:

VNaOH (L) × MNaOH = moles of NaOH = moles of HOAcMolarity of HOAc = moles of HOAc / Volume of vinegar sample (L)

Given that the volume of NaOH used is (19.35 mL - 0.15 mL) and the molarity of NaOH is 0.317 M, the calculation is as follows:

Moles of NaOH = (19.35 mL - 0.15 mL) × 0.317 M × (1 L / 1000 mL)

Moles of HOAc = Moles of NaOH

Molarity of HOAc = Moles of HOAc / 0.025 L

NaOH = 19.35 - 0.15 = 19.2 mL 19.2 mL x 0.317 M = 6.086 millimoles NaOH 6.086 mmol NaOH neutralized 6.086 mmol acetic acid 6.086 mmol acetic acid / 25.0 mL = 0.2435 mmol/mL = 0.2435 mol/L Acetic acid was 0.2435 M

The total pressure of gases a, b, and c in a closed container is 4.1 atm. if the mixture is 36% a, 42% b, and 22% c by volume, what is the partial pressure of gas c?

Answers

The total pressure of the mixture of the gases is calculated by adding up the products of the volume of the percentages with the pressure that is called the partial pressure of the component. 

For gas C, the partial pressure can be calculated through the equation,
                              Partial pressure = (0.22)(4.1 atm)
                               partial pressure = 0.902 atm

ANSWER: 0.902 atm

 The  partial  pressure of  gas C  is 0.902  atm


  calculation

partial pressure of gas c  =[( percent by volume of  gas   C /  total  percent)   x total pressure]


percent  by  volume of gas C= 22%

Total   percent  = 36% +42%  + 22%  = 100 %

Total  pressure  =  4.1 atm


partial  pressure  of gas C  is therefore =  22/100 x 4.1 atm = 0.902  atm

How many total atoms are in 0.830 g of p2o5?

Answers

Answer:

[tex]2.46x10^{22}atoms[/tex]

Explanation:

Hello,

In this case, we need to compute the atoms of both phosphorous and oxygen, taking into account the following mass-mole-atoms relationship:

[tex]Molar,mass=31*2+16*5=142g/mol\\atomsP=0.830gP_2O_5*\frac{1molP_2O_5}{142gP_2O_5} *\frac{2molP}{1molP_2O_5} *\frac{6.022x10^{23}atomsP}{1molP}=7.04x10^{21}atomsP\\atomsO=0.830gP_2O_5*\frac{1molP_2O_5}{142gP_2O_5} *\frac{5molO}{1molP_2O_5} *\frac{6.022x10^{23}atomsO}{1molO}=1.76x10^{22}atomsO[/tex]

Now, by adding each result, we've got:

[tex]atoms=1.76x10^{22}atomsP+7.04x10^{21}atomsO=2.46x10^{22}atoms[/tex]

Best regards.

Final answer:

To find the total atoms in 0.830 g of P2O5, calculate its moles, then multiply by Avogadro's number and atoms per molecule, resulting in approximately 2.46×1022 atoms.

Explanation:

To determine the total number of atoms in 0.830 g of P2O5, we first need to calculate the number of moles of P2O5.The molar mass of P2O5 can be calculated by adding the molar masses of phosphorus (P) and oxygen (O) in the compound. The molar mass of phosphorus is 30.973761 g/mol, and the molar mass of oxygen is 15.9994 g/mol. Therefore, for P2O5:2P: (2 atoms)(30.973761 g/mol) = 61.947522 g/mol5O: (5 atoms)(15.9994 g/mol) = 79.9970 g/mol The molar mass of P2O5 = 61.947522 g/mol + 79.9970 g/mol = 141.944522 g/mol. Now, to find the number of moles of P2O5 in 0.830 g:Number of moles = mass / molar mass = 0.830 g / 141.944522 g/mol = 0.005846 mol. Since one molecule of P2O5 contains 2 atoms of phosphorus and 5 atoms of oxygen, totalling 7 atoms, the total number of atoms in the sample is calculated by multiplying the number of moles by Avogadro's number (6.022×1023 atoms/mol) and then by the number of atoms per molecule: Total number of atoms = 0.005846 mol × 6.022×1023 atoms/mol × 7 atoms/molecule = 2.46×1022 atoms.

What is the element produced when 44ti undergoes electron capture?

Answers

When titanium undergoes elctron capture

22Ti + e-  21Sc + Ve

so on electron capture of titanium produces Scandium

so your answer is Sc

G vinegar is a solution of acetic acid in water. if a 165 ml bottle of distilled vinegar contains 28.2 ml of acetic acid, what is the volume percent (v/v) of the solution?

Answers

Volume Percent (volume/volume%) is defined to be the ratio of the volume of solute to the volume of solution times 100%. The acetic acid is the solute volume. The bottle of vinegar is the solution volume. Acetic acid (28.2ml) / Vinegar(165ml) x 100% = 17.1%

If the pressure, volume, and the number of moles of a gas are known, which is needed to calculate the universal gas constant from the ideal gas law?
the temperature of the gas
the molar volume of the gas
the molar mass of the gas
the partial pressure of the gas

Answers

The ideal gas law describes the relationship between the pressure, volume, temperature, and number of moles of a gas in this way:
PV = nRT , where R is the universal gas constant. 

Therefore, we are missing the temperature of the gas if we want to calculate the universal gas constant. 

Write an equation for the formation of bf3(g) from its elements in their standard states.

Answers

Final answer:

The formation of BF3(g) from its elements in their standard states is described by the equation B(s) + 3F2(g) -> BF3(g). The reaction involves the solid boron reacting with three moles of fluorine gas to form boron trifluoride gas.

Explanation:

The formation of BF3(g) from its elements in their standard states is represented by the following equation:

B(s) + 3F2(g) -> BF3(g)

This equation represents the formation of one mole of boron trifluoride (BF3) gas from boron in its standard state (solid) and fluorine in its standard state (gaseous). In this reaction, solid boron reacts with three moles of fluorine gas to form one mole of boron trifluoride gas. This type of equation is typically used in calculations involving energetics, for example when calculating the standard enthalpy change of formation.

Learn more about Formation of BF3(g) here:

https://brainly.com/question/6454500

#SPJ12

Final answer:

The formation of boron trifluoride (BF3) from its elements boron (B) and fluorine (F2) in their standard states is represented by the equation: B(s) + 3/2 F2(g) -> BF3(g).

Explanation:

Boron trifluoride (BF3) is formed from its elements boron (B) and fluorine (F2) in their standard states. The equation for the formation of BF3 from its elements in their standard states can be written as:

B(s) + 3/2 F2(g) -> BF3(g).

Here, solid boron (B) reacts with fluorine gas (F2) to form boron trifluoride gas (BF3). This process involves the breaking of F-F bonds in F2 and the formation of new B-F bonds in BF3. The total energy involved in this conversion is equal to the experimentally determined enthalpy of formation of the compound from its elements.

Learn more about Formation here:

https://brainly.com/question/35558738

#SPJ11

What is the solubility of m(oh)2 in a 0.202 m solution of m(no3)2? ksp = 9.05×10−18?

Answers

Final answer:

The solubility of M(OH)2 in a 0.202 M solution of M(NO3)2 is approximately 0.202 M.

Explanation:

To determine the solubility of M(OH)2 in a 0.202 M solution of M(NO3)2, we need to use the solubility product constant (Ksp) and solve for the molar solubility (M) of M(OH)2.

The equation for the dissolution of M(OH)2 is:

M(OH)2 → M²⁺ + 2OH⁻

Using the given Ksp value of 9.05 x 10-18, we can set up the expression for Ksp:

Ksp = [M²⁺] * [OH⁻]2

Since the molarity of M(NO3)2 is 0.202 M, the concentration of M²⁺ ions is also 0.202 M.

Let's assume the molar solubility of M(OH)2 is M. Therefore, the concentration of OH⁻ ions would be 2M (because of the 2:1 stoichiometric ratio).

Substituting the values into the expression for Ksp and solving for M, we get:

Ksp = (0.202)(2M)2

9.05 x 10-18 = 0.404 M²

Taking the square root of both sides:

M = 0.202 M

Therefore, the solubility of M(OH)2 in a 0.202 M solution of M(NO3)2 is approximately 0.202 M.

When a 15.9 ml sample of a 0.384 m aqueous hydrocyanic acid solution is titrated with a 0.417 m aqueous potassium hydroxide solution, what is the ph at the midpoint in the titration?

Answers

 10.85 is your answer, hopes this helped.

Which item is made from a basic ingredient?
Soap
Tea
Wine
Vinegar

Answers

Answer:

vinegar is made from the most basic ingredient

Explanation:

Which law relates to the ideal gas law?

Answers

The correct option is VI /n1 = V2 / n2.
The ideal gas law is a combination of three different gas laws.  Boyles' , Charles' and Avogadro's gas laws are combined together to form the ideal gas law. This means that these three gas laws are related. From the options given above, VI /n1 = V2 / n2 is correct because it is the equation for the Avogadro's law.

Answer:

The answer on Ed is C :

VI /n1 = V2 / n2.

Explanation:


Why is the demand for environmental scientists and specialists expected to increase?

Answers

We need these scientists because the damage we have put on this earth we will eventually need many people from this field so they can fix the immense damage we have done    

Environmental scientists and specialists are expected to be in demand as public awareness of environmental threats grows. These professionals will still be required to analyze environmental issues and create solutions that protect community health.

What is the demand for environmental scientists?

Due to the increased effects of climate change we have witnessed over the past ten years, employment opportunities in environmental science are more in demand than ever. Environmental scientists study problems like pollution and deforestation that concern us all.

Environmental scientists are expected to be in greater demand due to the growing need for environmental protection and responsible land and water resource management.

In their research, environmental scientists frequently employ scientific techniques and data analysis. Their conclusions are based on a careful examination of scientific evidence. In their analyses, they must take into account all potential strategies, interactions, and solutions.

Thus, Environmental scientists and specialists are expected to be in demand as public awareness of environmental threats grows.

To learn more about the environmental scientists, follow the link;

https://brainly.com/question/3173439

#SPJ6

What will happen if you put some 20 ∘c water in a vacuum chamber and reduce the pressure to less than 18 mmhg?

Answers

The answer is the water will boil. The water boils because of a reduction in the air pressure due to the reduced weight of air column above. This also reduces the collision of water molecules with air molecules at the surface hence allowing the water molecules to easily escape into the atmosphere. This means that the boiling point of the water is easily reached under low air pressure.

Answer : The water will start boiling.Explanation :

The water was at 20°C and when it was subjected to experience reduced pressure in a vacuum chamber where there was no exchange of energy was possible. The system was isolated from the surrounding and when the system was brought to low pressure of less than 18 mmhg the molecules of water expanded and the collision rate between the molecules increased which brought early boiling of the water molecules than normal conditions.

Which units express heat capacity? J/°C, J/K, cal/°C, cal/K J/(gi°C), J/(giK), cal/(gi°C), cal/(giK) J, cal °C, K

Answers

Hello!

The units that express heat capacity are J/ °C; J/K; and cal/ °C

Why?

Heat capacity is the amount of heat required to increase the temperature of a determined amount of substance.

As the heat capacity increases, more heat will need to be given to the substance to increase its temperature.

Heat capacity is expressed mathematically as:

[tex]\lim_{\Delta T \to 0} \frac{Heat}{\Delta Temperature}[/tex]

So that means that Heat capacity will have units of Heat (in J or cal) over temperature (in °C or K).

Have a nice day!

its a or J/°C, J/K, cal/°C, cal/K

Explanation:

2. Why was it important to examine both the color and the streak of your minerals? Think about streak and explain why it’s called a mineral’s “true color”. Answer in at least 2 sentences.

Answers

It is important to examine both the colour and the streak of a mineral because the streak may be completely different from the colour of the hand specimen.
The streak of a mineral is the color it possesses after it has been grounded to a fine powder. The streak test has to be done on minerals because it is a more reliable way of identifying a mineral with its color.

how does the energy required to sublime a substance compare to the energy required to melt the substance

Answers

The energy required to sublime (solid to gas) a substance at 1 ATM pressure is greater than the energy required to melt (solid to liquid) a substance. When you compare the energies in varying pressures, however, this trend is not always the case. 

any 'general phase diagram', you can see that under the triple point, when all phases are in equilibrium, have solid and gas meeting under a certain pressure. In a vacuum, it would require less energy to sublime than to melt.

What two actions are required to work together to move water to the top of tall plants? capillary action and gravity evaporation and capillary action adhesion and cohesion surface tension and gravity

Answers

Two Actions required to work Together to move water to Top of Tall Plant

Evaporation and capillary action are required to work together to move water to the top of tall plants. Evaporation is a kind of condensation that happens in the form of a liquid as it transforms into the gas state when it approaches its boiling point.

Temperature, surface area and intermolecular forces are the factors which affect evaporation. Capillary action is the capacity of a liquid to move in confined areas without the help of forces, which are provided by outside like gravitational force which is due to earth.

These two phenomena are required to flow water or liquid to the top of tall plants.

You need evaporation and capillary action to move water to the top of tall plants.

I hope this helps :D

When marco is sick, he tests the ph of his saliva and finds that it is 6.1. what is the hydrogen ion concentration of his saliva? (round your answer to seven decimal places.)?

Answers

Final answer:

The pH of Marco's saliva indicates its acidity, and with a pH of 6.1, the hydrogen ion concentration, [H3O+], is approximately 0.0000008 M.

Explanation:

The subject of your question is related to the concentration of hydrogen ions in a solution, which comes under the field of chemistry. The pH of a solution is a way to measure the acidity or alkalinity of a liquid and is calculated by the formula pH = -log[H3O+]. If Marco's saliva has a pH of 6.1, we can use this formula to calculate the concentration of hydrogen ions, or [H3O+], in his saliva.

To find [H3O+], simply reverse the formula: [H3O+] = 10^-pH. So for Marco's saliva with a pH of 6.1, [H3O+] = 10^-6.1. This gives a hydrogen ion concentration of approximately 0.0000001 M or to seven decimal places, 0.0000008 M.

Learn more about Hydrogen Ion Concentration here:

https://brainly.com/question/15082545

#SPJ12

The hydrogen ion concentration of Marco's saliva, determined from its pH of 6.1 using the formula [H+] = 10^(-pH), is approximately 7.943 × 10^(-7) Molar. This implies a relatively low concentration of hydrogen ions, indicative of a slightly acidic environment.

The pH of a solution is a measure of its acidity or alkalinity and is defined as the negative logarithm (base 10) of the hydrogen ion concentration. The formula for pH is given by pH = -log[H+], where [H+] is the hydrogen ion concentration.

In the case of Marco's saliva with a pH of 6.1, we can use the formula to find the hydrogen ion concentration.

pH = -log[H+]

6.1 = -log[H+]

To find [H+], we can rewrite the equation as:

[H+] = 10^(-pH)

Substituting the pH value:

[H+] = 10^(-6.1)

Calculating this gives the hydrogen ion concentration:

[H+] = 7.943 × 10^(-7)

Rounded to seven decimal places, the hydrogen ion concentration of Marco's saliva is approximately 0.0000008. Therefore, the hydrogen ion concentration is 7.943 × 10^(-7).

To learn more about hydrogen ion

https://brainly.com/question/29033205

#SPJ6

What do gamma rays consist of?

Answers

 the answer is that high energy photons are what gamma rays consist of



Other Questions
A ballroom has a square dance floor. The area of the floor is 400 square feet. If the length of each side of the square increased by one foot, would its area be a rational number? explain What is the truth value for the following conditional statement?p: trueq: truep qT T FF T TT T TT F T 4. Why would someone choose to remain a nonemployer? PLEASE HURRY THANK YOU Analyze the function f(x) = - 2 cot 3x. Include: - Domain and range- Period - Two Vertical Asymptotes Evaluate using the order of operations. 54 + (9.2 - 1.413) How could the equal protection clause of the 14th Amendment apply to the recount procedures in the 2000 election?A:it could be argued that the methods of recounting punch cards was not enforced equally under the lawB:the could be argued that there is no mention of punch cards in the ConstitutionC:it could be argued that the recount committee did not meet the qualifications for national election recountsD:it could be argued that punch cards were not an equitable voting method What characteristics of organisms older than 540 million years ago makes fossils? What is the function rule for the line WILL MARK BRAINLIEST! A sample was taken of dogs at a local dog park on two random days. The counts are displayed in the table below. If there are estimated to be 50 dogs at the park at any given time, which proportion could be used to find the average number of shepherd mixes at the park at any given time? What is the value of a in the equation 4a + 3(a + 1) = 24? Given: Jennifer sings alto in the school choir. The choir has 4 voice parts. The female voice parts are soprano and alto. The male voice parts are tenor and bass. What conclusion can be drawn?A. Jennifer sings a female voice part in the choir B. There are no basses in the choir Which part of the passage supports the claim that the information ordinary people send digitally should be protected? Select a rule for the following pattern. 44; 440; 4,400; 44,000 . . . For the proportional relationship y=25x, what is the ratio of vertical change to horizontal change? Will the graph of the line increase or decrease? A.25 The graph increases from left to right. B.52 The graph increases from left to right. C.25 The graph decreases from left to right. D.52 The graph decreases from left to right. Select all that apply Mark for Review? Which best describes the style of The Little Foxes? Which best states why the renaissance began in northern italy?northern italy was home to great universities.northern italy was close to ancient civilizations.northern italy was home to great political leaders.northern italy was close to the catholic church? What is another name for a blue screen error which occurs when processes running in kernel mode encouter a problem and windows must stop the system? how did Chandragupta support his successful war efforts Satellites KA-1212and SAL-11have spotted a UFO. Scientists want to determine its distance from KA-1212so they can later determine its size. The distance between the satellites is900 km. If KA-1212's camera is focused on SAL-11, it must rotate 60 to see the UFO. If SAL-11's camera is focused on KA-1212, it must rotate 75 to see the UFO. How far is the UFO from KA-1212? Round your answer to the nearest kilometer. The simplest structured unit of a compound is a(n):electronatomprotonmolecule Steam Workshop Downloader