a gas has a volume of 590 mL at a temperature of 590 mL at a temperature of -55.0 degrees Celsius. What volume will the gas occupy at 30.0 degrees Celsius?

Answers

Answer 1

Answer:

Answer: The volume that gas occupy will be 820.04mL.

Explanation:

To calculate the volume of the gas at different temperature, we will use the equation given by Charles' Law.

This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

$V\propto T$

or,

$(V_1)/(T_1)=(V_2)/(T_2)$

where,

$V_1\text{ and }T_1$ are the initial volume and initial temperature of the gas.

$V_2\text{ and }T_2$ are the final volume and final temperature of the gas.

We are given:

$T(K)=273+T(^oC)$

$V_1=590mL\nT_1=-55^oC=218K\nV_2=?mL\nT_2=30^oC=303K$

Putting values in above equation:

$(590)/(218)=(V_2)/(303)\n\nV_2=820.04mL$

Hence, the volume that gas occupy will be 820.04mL.

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A yellow element stinks when burned

Answers

The yellow element that stinks when burned is sulfur.

Sulfur is a chemical element with the symbol S and atomic number 16. It is a non-metal that is a member of the chalcogen group in the periodic table. Sulfur is a yellow solid at room temperature. It is insoluble in water but soluble in carbon disulfide. When sulfur is burned, it produces a foul-smelling gas called sulfur dioxide.

Sulfur dioxide is a colorless gas with a pungent, irritating odor. It is a major air pollutant and can cause respiratory problems. Sulfur is used in a variety of applications, including the production of sulfuric acid, gunpowder, and rubber. It is also used in the vulcanization of rubber. Sulfur dioxide is a highly reactive gas. Sulfur dioxide has a low boiling point. Sulfur dioxide is heavier than air.

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Sulfur smells like rotten egg and is yellow...

a cylinder with a moveable piston contains 0.553 mol of gas and has a volume of 253 ml. what is its volume if has 0.365 mol of gas in the cylinder. (assume constant temperature and pressure.)

Answers

Answer:

V = 0.167L

Explanation:

We can use the ideal gas law:

PV = nRT

where P, V, and T are pressure, volume, and temperature (Kelvin only). R is the gas constant and n is the moles of gas.

We want the volume of gas when the moles changes. Let's set up two equations, 1 for each state. Since both temperature and pressure are constant, we can simply use the terms P and T both states.

Initial (0.553 moles and 253 ml)): P*(0.253L) = (0.553 moles)RT

Second (0.365 moles, unknown volume, V): P*V = (0.365 moles)RT

P*(0.253L) = (0.553 moles)RT

P*V = (0.365 moles)RT

Lets set these up as a ratio:

P*(0.253L)/P*V = ((0.553 moles)RT)/((0.365 moles)RT)

P, T and R all cancel to 1, and the moles unit cancels:

(0.253L)/V = (0.553)/((0.365)

The ratio of the volumes is in direct proportion with the ratio of the moles.

Rearrange and solve:

(0.253L) = (0.553)/((0.365)V

(0.253L)*(0.365/0.553) = V

V = 0.167L

Which is a characteristic of a nonelectrolyte?A. It does not dissociate or ionize in water.
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C. It conducts electricity poorly.
D. It conducts electricity extremely well.

Answers

Answer: Option (A) is the correct answer.

Explanation:

Non-electrolytes are the substances which do not dissociate into a solution or water to form ions.

Since, non-electrolytes do not dissociate into ions. Hence, they do conduct electricity.

Thus, we can conclude that it does not dissociate or ionize in water is a characteristic of a non-electrolyte.

Non-electrolytes are neither partially ionizable nor do they conduct electricity poorly. Therefore, out of the given options, only option (A) is the correct answer.

It is A on edge test

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Answers

Net ionic equation should be like this :
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Answers

Answer:

Comets are composed of ice, dust and frozen gases. The core of the comet is known as nucleus which is formed of rocks and frozen gases. Coma is the atmosphere of the comet. As the comet enters the inner solar system, the coma expands due to sublimation of frozen gases. As it nears the sun, the coma extends backwards and forms a long tail. It extends backwards due to the solar wind. The charged particles from the sun take away the evaporated material and dust of the comet backwards forming tail.

As a comet approaches the Sun, it starts to heat up. The ice transforms directly from a solid to a vapor, releasing the dust particles embedded inside. Sunlight and the stream of charged particles flowing from the Sun – the solar wind – sweeps the evaporated material and dust back in a long tail.

1,000convert in to scientific notation

Answers

1*10^3
It’s easier to think of it this way- the number of zeros will be the exponent

Answer: 1 x $10^3$

Explanation: You can see that the only non-zero digit is 1, so it is 1 x $10^x$ 1,000 has 3 zeroes to the left of the period, so it is1x $10^3$ . Quite simple!

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