2. A gas has a volume of 350 ml at 45.C. If the volume changes to 400.0 ml, what is the
new temperature? ( answer in °C)

Answers

Answer 1
Final answer:

The question involves the application of Charles' Law. For a gas at constant pressure, when the volume increases from 350 ml to 400 ml, the temperature also increases. The new temperature is approximately 91 °C.

Explanation:

This question involves the concept of Charles' Law in the subject of physics, which states that the volume of a gas is directly proportional to its temperature provided pressure remains constant. So, if a gas's volume increases, its temperature should increase as well, and vice versa. We can set up the following equation based on Charles' Law: V1/T1 = V2/T2, where V1 = 350 ml, T1 = 45 °C + 273 = 318 K (you must convert Celsius to Kelvin in gas law problems), V2 = 400 ml, and T2 is what we're trying to find.

After substituting the known values, we have 350/318 = 400/T2. Solving for T2 gives us approximately 364 K. Finally, we convert this back into °C by subtracting 273, so the new temperature T2 is around 91 °C.

Learn more about Charles' Law here:

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Related Questions

What is a way that we can slow down climate change?
A. Use alternative energy sources such as coal, which produce less carbon dioxide than fossil fuels.
B. Fly less often as planes make as much greenhouse gas as 3 months of driving would.
C. Cut down trees on our property which produce carbon dioxide.
D. Reduce visiting the beach, the heavy foot traffic releases carbon dioxide stored in the sand.

Answers

Answer:

I would guess B, because trees make oxygen, not carbon dioxcide, and coal is actually a very harmful source of energy.

hope this helps

Explanation:

Final answer:

To slow climate change, it is crucial to reduce energy use, switch to alternative energy sources like solar and wind, and enhance carbon sinks by planting forests.

Explanation:

To slow down climate change, we should focus on several key actions. First, we need to reduce energy use, which could include measures like turning off lights when not in use and driving more fuel-efficient cars. These steps help because much of the electricity and transportation relies on burning fossil fuels, which releases large amounts of carbon dioxide.

Another important action is to switch to cleaner alternative energy sources, such as solar, wind, and geothermal energy. These sources produce little to no carbon emissions compared to fossil fuels like coal, oil, and natural gas. Additionally, increasing the use of technologies like hybrid cars can drastically reduce air pollution and fossil fuel consumption. Moreover, we can combat climate change by enhancing carbon sinks, such as planting more forests which absorb carbon dioxide from the atmosphere.

what is the organization that regulates the safety of Bluetooth and other wireless devices

Answers

Answer:

The U.S. Federal Communications Commission (FCC)

Explanation:

The FCC's Wireless Telecommunications Bureau regulates the safety and policies of Bluetooth and other wireless devices, while the FDA's Center for Devices and Radiological Health oversees the safety of radiation-emitting products, including Bluetooth-enabled devices.

The organization primarily responsible for the regulation of Bluetooth and other wireless devices in the United States is the Federal Communications Commission (FCC), specifically through its Wireless Telecommunications Bureau (WTB). The WTB handles all FCC wireless telecommunications programs and policies, which includes a variety of services such as amateur radio, cellular networks, pagers, Personal Communications Service (PCS), and more. They work to manage and license the radio frequencies and provide policies to ensure the safety and reliability of wireless communication services.

On the other hand, for devices that emit radiation, including Bluetooth-enabled devices, the Center for Devices and Radiological Health (CDRH), a division of the Food and Drug Administration (FDA), oversees the performance and safety of these products. This includes a broad range of items from medical devices to non-medical radiation-emitting products, ensuring that both medical and consumer devices adhere to safety standards.

Which of the following statements is true?
Evaporation is the main way water enters the atmosphere.
Condensation is the opposite of evaporation.
The total amount of water on the earth stays the same.
all of the above

Answers

The answer is all of the above.
Good luck!

Mark brainliest?

Answer:

Evaporation is the main way water enters the atmosphere.

Explanation:

Evaporation is the main way moisture enters the atmosphere. The amount of evaporation is not the same all of the world. Most evaporation happens over large bodies of water, like oceans and seas. Very little evaporation happens in dry areas, such as deserts. The amount of water on earth is constant. This means it does not change.  

A student prepares 150.0 mL of 1.40 M HCl using 35.0 mL of a stock solution. What is the concentration of the stock solution? Use M subscript i V subscript i equals M subscript f V subscript f..

Answers

Answer:6.0M

Explanation:see attached photo

The concentration of the stock HCl solution used to prepare 150.0 mL of 1.40 M HCl from 35.0 mL of the stock solution is 6.00 M.

To find the concentration of the stock solution of HCl used to prepare a diluted solution, we can use the dilution equation MiVi = MfVf, where Mi and Vi are the concentration and volume of the initial stock solution, and Mf and Vf are the concentration and volume of the final diluted solution.

In this case, the student has prepared 150.0 mL of 1.40 M HCl by diluting 35.0 mL of a stock solution. To find the concentration of the stock solution (Mi), we rearrange the equation to solve for Mi:

Mi = (MfVf) / Vi

Substituting the given values:

Mi = (1.40 M × 150.0 mL) / 35.0 mL

Mi = (210.0 × mL) / 35.0 mL

Mi = 6.00 M

Therefore, the concentration of the stock HCl solution is 6.00 M.

The compound ammonia is composed of a single nitrogen atom bonded by single bonds to three hydrogens. How many electrons total are contained in the three single bonds?
A. 3
B. 4
C. 5
D. 6

Answers

I think the answer is D

D)6 electrons are contained in the three single bonds.

Is ammonia a hydrogen bond?

An ammonia molecule can donate and be given up to a few hydrogen bonds. Ammonia clusters are made out of ammonia molecules connected via hydrogen bonds. The hydrogen bond community of ammonia clusters is related to ammonia's homes.

The bond formed via Nitrogen and Hydrogen is a covalent bond because each is non-metal. While those two atoms bond, Nitrogen nonetheless has an excess of 2 valence electrons which might be called the “lone pair”.

Learn more about nitrogen here: https://brainly.com/question/1380063

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If distance increases does potential energy increase or decrease?

Answers

Answer:

Therefore having the bodies closer together increases the potential energy stored, and conversely increasing their distance reduces the potential energy. In this case the potential energy is always positive, again dropping to zero as the force decreases to zero with the bodies very far apart.

Explanation:

Decrease because if one increase the other has to decrease

In your body, carbon dioxide, CO2, dissolves in the blood to form carbonic acid, H2CO3 as follows:

CO2(g) + H2O(l) ⇆ H2CO3(aq)

After heavy exercise, your body builds up carbonic acid, which can become toxic in high enough concentrations. This can lead to panting like a runner after a race which helps you to more quickly breathe out carbon dioxide and reduce its concentration.

1) What is the effect on the reaction balance of panting?
2)What will be the effect on the concentration of carbonic acid – explain your reasoning
3)If you hike to the top, would the low pressure at high altitude help reduce or increase the carbonic acid concentration? – Explain your answer.
4)Some carbon dioxide dissolves in your blood directly as CO2(aq). What is the effect of the lower pressure at a mountain top on the ability to directly dissolve CO2(g)?


Answers

Panting after exercise reduces carbon dioxide levels in the blood, decreasing carbonic acid and helping restore pH balance. At higher altitudes, lower pressure reduces blood's capacity to hold CO₂, potentially leading to decreased carbonic acid concentration but also complicating the body's regulatory mechanisms. Direct dissolution of CO₂ in the blood is also affected by lower pressure.

Effects of Panting and Altitude on Carbonic Acid Concentration:

Panting after heavy exercise increases the expulsion of carbon dioxide, which in turn decreases the concentration of carbonic acid in the blood. This process reestablishes the pH balance, reducing the risk of acidosis caused by the buildup of lactic acid and carbonic acid during strenuous activity. Furthermore, hiking to a higher altitude, where the pressure is lower, would reduce the ability of blood to hold carbon dioxide. This reduction leads to faster removal of carbon dioxide from the blood, which would tend to decrease carbonic acid concentration. However, due to reduced oxygen availability and potential respiratory adjustments such as hyperventilation, the effect on blood pH can be complex at high altitudes.

Lower pressure at high altitudes also affects the direct dissolution of carbon dioxide (CO₂) in blood. At lower pressures, less CO₂ can be dissolved directly, which might necessitate increased respiratory rates to compensate for the reduced ability to carry carbon dioxide away from tissues. Overall, both mechanisms work to ensure the body can maintain a stable internal environment, particularly during varying physical demands and environmental conditions.

The Great Pacific Garbage Patch is best described as _______. a. a floating island of garbage in the Pacific ocean the size of Texas b. a garbage patch formed of clusters of plastic debris c. a patch of densely polluted water the size of Texas in the Pacific ocean d. the result of oceangoing ship pollution Please select the best answer from the choices provided

Answers

Answer:

C. a patch of Densely polluted water the size of Texas in the Pacific ocean

Explanation:

All of the Answers are Correct but this describes the Size, location, and the harshness of it.

Answer:

c

Explanation:

PLEASE HELP
The chemical formula for a compound tells what?

A. How electrons are arranged

B. how stable the compound is

C. what elements it contains

D. what type of chemical bond it forms

Answers

Answer:

All objectives are correct but C is most suitable

Explanation:

All objectives A, B, and D can be shown in bonding arrangement which is not the case for C.

For example, complex compounds like

Sodium aluminate NaAl(OH)

The answer is C.
The chemical formula of Oxygen is O_2
And for water is H_2O

How many grams of HF are needed to react with 3.0 moles of Sn? *
How many moles of SnF₂ will be produced along with 48 grams of H₂? *

Sn + 2HF (arrow) SnF2 + H2

30g
60g
120g
240g

Answers

Answer:

60 g

Explanation:

how many grams of acetylene are produced by adding 3 moles of cac2

Answers

Answer:

78.12g of acetylene

Explanation:

Acetylene and calcium hydroxide are produced when H₂O reacts with CaC₂. The reaction is:

2 H₂O + CaC₂ → C₂H₂ + Ca(OH)₂

Where 1 mole of C₂H₂ (acetylene) is produced per mole of CaC₂

Thus, the addition of 3 moles of CaC₂ produces 3 moles of acetylene.

As molecular mass of acetylene is 26.04g/mol, grams of acetylene produced are:

3mol C₂H₂ × (26.04g / mol) = 78.12g of acetylene

Final answer:

By adding 3 moles of calcium carbide, you will produce 78.12 grams of acetylene, as the reaction yields a 1:1 mole ratio and acetylene has a molar mass of 26.04 g/mol.

Explanation:

To answer the question of how many grams of acetylene are produced by adding 3 moles of calcium carbide (CaC₂), we will refer to the chemical reaction:

CaC₂ (s) + 2 H₂O(l) → C₂H₂(g) + Ca(OH)₂ (s).

According to the balanced chemical equation, 1 mole of calcium carbide reacts with water to produce 1 mole of acetylene. Therefore, if you start with 3 moles of calcium carbide, you will produce 3 moles of acetylene. The molar mass of acetylene (C₂H₂) is approximately 26.04 g/mol. Consequently, to find the mass of 3 moles of acetylene we calculate:

3 moles C₂H₂ × 26.04 g/mol = 78.12 grams of acetylene.

So, by adding 3 moles of calcium carbide, you will produce 78.12 grams of acetylene.

a sample of gas has a volume of 5.79 L at 25C and 518. What will be the volume of this gas at STP

Answers

Answer:

V2 = 389mL

Explanation:

At STP: P=760 torr and T=273K.

To solve this question, we could use Charles' law since both the number of mole and pressure are constant:

V1T1=V2T2

⇒V2=T2×V1T1

⇒V2=273K×425mL/298K=389mL

PLEASE HELP

What type of patterns can a tidal height graph show ?

Answers

Answer:

Diurnal, Semidiural and mixed

7. What type of water pollution is produced from chemicals used to kill bugs and
weeds?

Answers

Answer:

Groundwater pollution

Explanation:

Pesticides, when sprayed on crop plants, are able to flow below the surface of the ground, reaching water-bearing aquifers, thereby contaminating groundwater, making it unsuitable for both human and agricultural uses.

Final answer:

The type of water pollution produced from chemicals used to kill bugs and weeds is due to pesticides, including insecticides and herbicides, which contaminate water bodies through runoff and leaching into groundwater.

Explanation:

The type of water pollution produced from chemicals used to kill bugs and weeds is primarily due to pesticides, which include insecticides, herbicides, and fungicides. These chemicals often run off during rainfall into nearby rivers, lakes, and infiltrate into groundwater, creating a significant environmental concern. Contaminated water can cause an overgrowth of water plants and algae, which in turn, results in dead zones. Moreover, if humans consume water contaminated with these substances, they can fall ill from a variety of health issues, including cancer, damage to the central nervous system, and developmental defects. Therefore, the chemicals from pesticides and herbicides used in agricultural and garden applications significantly contribute to water pollution.

(PLS HELP I HAVE 5 MINS TO TURN IN)
The parts that are either directly or indirectly related to each other in a system are known as what?

A)the input
B)the components
C)the boundary
D)the flow

Answers

Answer:

im guessing D

Explanation:

hope it helps

In Hawaii, the mongoose was brought to the islands to control the snake population. It thrived, and now the mongoose population is rampant. Which threat to biodiversity describes this situation?

Answers

Answer:

Introduced species (invasive species)

He volume of N2 gas is 500 mL at the temperature of 10 ℃ at 108 kPa. What will be the new pressure if the volume increased to 750 mL and the temperature increased at 21 ℃? Please quickly help!!!!!

Answers

Answer:

The new pressure will be 74.8 kPa

Explanation:

Step 1: Data given

Volume of the N2 gas = 500 mL = 0.500 L

Temperature = 10.0 °C = 283 K

Pressure = 108 kPa

The volume is increased to 750 mL = 0.750 L

The temperature is increased to 21.0 °C = 294 K

Step 2: Calculate the new pressure

P1*V1 / T1 = P2*V2 / T2

⇒with P1 = the initial pressure = 108 kPa

⇒with V1 = the initial volume = 0.500 L

⇒with T1 = the initial temperature = 283 K

⇒with P2 = the new pressure = TO BE DETERMINED

⇒with V2 = the increased volume = 0.750 L

⇒ with T2 = the increased temperature = 294 K

108 * 0.500 / 283 = P2 * 0.750 / 294

P2 = (108*0.500 * 294) / (283*0.750)

P2 = 74.8 kPa

The new pressure will be 74.8 kPa

Please show all your work! :)

Answers

Answer:

A

Explanation:

First, we're given that the atmospheric pressure is 744.8 mmHg. However, this includes the pressure of the Zinc and the pressure of the water; we only want the pressure of the water, so subtract its pressures (23.8 mmHg) from 744.8 mmHg: 744.8 - 23.8 = 721 mmHg.

Now, we can use the ideal gas law: PV = nRT.

- the pressure P is 721 mmHg

- the volume V is 7.80 L

- the moles n of Zinc is what we want to find in order to calculate the mass

- the gas constant R is 62.36 L mmHg / (mol K)

- the temperature T is 25.0°C, or 25.0 + 273 = 298 K

Plug all these in:

PV = nRT

(721 mmHg) * (7.80 L) = n * (62.36) * (298 K)

n ≈ 0.303 mol Zn

We need to convert this to grams, so use the molar mass of Zinc, which is 65.38 g/mol:

[tex]0.303molZn*\frac{65.38g}{1mol} =19.8gZn[/tex]

Thus, the answer is A.

The answer to this problem is A!

why do you say that is the right answer

Answers

Answer:

because it is

Explanation:

Answer:

it is

Explanation:

it just is wym

What is the [H3O+] in a solution of pH 0.60?

Answers

Answer:

.25

Explanation:

H+=10^-pH

- Hope that helps! Please let me know if you need further explanation.

Answer:

What is the [H3O+] in a solution of pH 0.60?  

Explanation:

No cap

Why is sodium hydrogen carbonate an effective antacid but sodium hydroxide is not?

Answers

Sodium hydrogen carbonate is a weak base, therefore it does not harm the stomach and reduces the stomach acid. Sodium hydroxide is too caustic and not easily buffered and is almost a very strong base. It has a low solubility and dissociation constant, and causes chemical burns in the mouth & throat

How many grams are 1.20x10^24 atoms of potassium.

Answers

77.9 grams of potassium

Answer:

77.9

Explanation:

8. Which is a nonrenewable resource?
7 points
coal
water
soil
wood
ANSWER PLEASE:)

Answers

Answer:

Coal

Explanation:

Once it's all been mined, there's no more. It's not like we grow it.

Coal is a non-renewable resource because it’s a fossil fuel that takes millions of years to form.

What is a disadvantage of using solar energy to produce electricity

Answers

Answer:

Sun

Explanation:

It Might be raining meaning that the sun isn't shining very brightly.

Answer:

The solar energy might cost a lot in order to install it. As well, there is no solar power at night so you won't have the electricity you need. So like in winter in some place there is no Sun, more specifically the light from the Sun, it is sometimes cloudy all day and there is no light coming from the Sun, so like I said you won't have electricity.

Explanation:

I hope my explanation was understandable :/

what is the chemical equation in words for 2 C2H2 (g) + 5 O2 (g) ---------> 4 CO2 (g) + 2 H2O (l )

Answers

Answer:

Ethyn(g) + 5oxygen(g) ------------> 4carbondioxide(g) + 2water(l)

(3x^4)^4 I need the steps to​

Answers

Answer:

81 x ^16

Explanation:

PEMDAS

You need to do parenthesis

(3x^4)^4

(3x•4) ^4•^4


12x^16

Which of the following statements is true?

Comet tails always point towards the sun.
Ateroids are made of frozen gas, ice, and water.
Most asteroids are found between Mars and Jupiter.
A light-year is equal to one million miles.

Answers

Answer:

your answer is A

Explanation:

What type of bond would form between two atoms of selenium?
A. Single ionic bond
B. Double covalent bond
C. Double ionic bond
D. Single covalent bond

Answers

Answer:

the correct answer is B

hope it helps !!!

Choose the phrases that you think of when you hear the word Sun. Check all that apply.
center of the solar system
hot
sunburn
solar energy
star
source of energy for life
solar radiation

Answers

Answer:

The answer is all of the above

A) Center of the solar system

B) hot

C) sunburn

D) solar energy

E) star

F) source of energy for life

G) solar radiation

The study of stars and planets is called cosmology.

The correct answer is all of them.

Sun is the celestial body that gives us the energy to make all the things on the earth.

All the option is justified as follows:-

Sun is the center of the solar system and all planets revolve around it.Sun is very hot its surface temperature is 15000CSun can cause sunburnThe energy which is produced by the sun is called solar energy.Sun itself a starThe source of energy on earth is the sun because it is used by plants.Sun emits solar radiation.

Hence, the correct option is all of them.

For more information, refer to the link:-

https://brainly.com/question/19200238

Stronger acids are those that —
F. hold on to their protons more strongly
G. lose their protons more easily
H. more completely inhibit polarity in water
J. exhibit hydrogen bonding

Answers

F. hold on to their protons more strongly
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