Question

1. A sample of gas in a cylinder as in the example in Part A has an initial volume of 48.0 L , and you have determined that it contains 1.20 moles of gas. The next day you notice that some of the gas has leaked out. The pressure and temperature remain the same, but the volume has changed to 12.0 L . How many moles of gas (n2) remain in the cylinder? Express your answer with the appropriate units. n2 =

2. A cylinder with a moveable piston contains 0.89 mol of gas and has a volume of 327 mL. What will its volume be if an additional 0.27 mol of gas is added to the cylinder? Express your answer using two significant figures. Vfinal =

***different kind of question next***

3. A bag of potato chips contains 595 mL of air at
35.0 ∘Cand a pressure of 765 mmHg. Assuming the bag does not break,
what will be its volume at the top of a mountain where the pressure
is 433 mmHg and the temperature is 5.00 ∘C? *V*final =
mL

Answer #1

1. A cylinder with a moveable piston contains 0.89 mol of gas
and has a volume of 327 mL. What will its volume be if an
additional 0.27 mol of gas is added to the cylinder? Express your
answer using two significant figures. Vfinal =
***different kind of question next***
2. A bag of potato chips contains 595 mL of air at 35.0 ∘Cand a
pressure of 765 mmHg. Assuming the bag does not break, what will be
its volume...

Part A
Consider 4.30 L of a gas at 365 mmHg and 20. ∘C . If the
container is compressed to 2.70 L and the temperature is increased
to 30. ∘C, what is the new pressure, P2, inside the
container? Assume no change in the amount of gas inside the
cylinder.
Express your answer with the appropriate units.
Part B
A cylinder, with a piston pressing down with a constant
pressure, is filled with 2.00 moles of a gas (n1),...

1. A sample of gas with an initial volume of 28.2 L at a
pressure of 728 mmHg and a temperature of 301 K is compressed to a
volume of 14.9 L and warmed to a temperature of 375 K. What is the
final pressure of the gas?
2. A gas sample with a volume of 5.3 L has a pressure of 725
mmHg at 24C. What is the pressure of the sample if the volume
remains at 5.3 L...

Consider 4.30 L of a gas at 365 mmHg and 20. ∘C . If the
container is compressed to 2.90 L and the temperature is increased
to 32 ∘C , what is the new pressure, P2, inside the container?
Assume no change in the amount of gas inside the cylinder.
What pressure would it take to compress 250. L of helium gas
initially at 1.00 atm into a 2.00 L tank at constant
temperature?
A balloon filled with 2.00 L...

1.A cylinder, with a piston pressing down with a constant
pressure, is filled with 1.90 moles of a gas (n1 ), and its volume
is 50.0 L (V1 ). If 0.400 mole of gas leak out, and the pressure
and temperature remain the same, what is the final volume of the
gas inside the cylinder?
A sample of gas in a cylinder as in the example in Part A has an
initial volume of 52.0 L , and you have...

1. scuba diver 40 ft below the ocean surface inhales 45.0 mL of
compressed air from a scuba tank at a pressure of 2.90 atm and a
temperature of 8 ∘ C . What is the final pressure of the air, in
atmospheres, in the lungs when the gas expands to 145.0 mL at a
body temperature of 37 ∘ C , and the amount of gas does not
change?
2. Consider 4.70 L of a gas at 365 mmHg...

Part A) A certain amount of chlorine gas was placed inside a
cylinder with a movable piston at one end. The initial volume was
3.00 L and the initial pressure of chlorine was 1.40 atm . The
piston was pushed down to change the volume to 1.00 L. Calculate
the final pressure of the gas if the temperature and number of
moles of chlorine remain constant.
part B) In an air-conditioned room at 19.0 ∘C, a spherical
balloon had the...

A gas sample has a volume of 0.954 L at a pressure of 764 mmHg.
What would be the pressure of the gas if the volume is changed to
418 mL ? Assume that the amount and the temperature of the gas
remain constant. Express your answer in millimeters of mercury to
three significant figures. I changed the L to 954 mL which gave me
an answer of 1743.7. I did not know how I could express this with
only...

A) A syringe containing 1.25 mL of oxygen gas is cooled from
90.3 ∘C to 0.9 ∘C. What is the final volume Vf of oxygen
gas?
B) What is its volume after an
additional 0.30 mol of gas is added to the cylinder? (Assume
constant temperature and pressure.) Express your answer to three significant
figures.
C) What is the pressure in a 12.9
L cylinder filled with 0.425 mol of nitrogen gas at a temperature
of 300 K ?
D)...

If 3.00 moles of gas in a container has a volume of 60. L and at
a temperature of 400. K, what is the pressure inside the
container?
If 1.9 moles of a gas are held in a container at 5.00 atm and
4.8x103 mL, what is the temperature of the gas?
What is the mass of 72.6 L of hydrogen gas held at a temperature
of -48.0°C and a pressure of 680.4 mm Hg?

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