1- A gas sample has a pressure of
1.17 bar. What is this pressure
in atm?
Hint: 1 atm = 101.3 kPa = 1.013 bar = 760 torr = 760 mm Hg = 14.7
psi
2-
A sample of gas has a volume of 474 mL at a
pressure of 3.49 atm. The gas is compressed and
now has a pressure of 7.72 atm. Predict if the new
volume is greater or less than the initial volume, and calculate
the new volume. Assume temperature is constant and no gas escaped
from the container.
New volume larger or smaller? _________
New volume = mL
3- A sample of gas has a volume of
2.64 L at a temperature of 40.70
°C. The gas sample is cooled to a temperature of
-4.37 °C (assume pressure and amount of gas are
held constant). Predict whether the new volume is greater or less
than the original volume, and calculate the new volume.
New volume larger or smaller? _________
New volume = L
4- A sample of gas contains
0.150 mol of
C2H4(g) and
0.150 mol of
H2O2(g) and occupies a
volume of 12.0 L. The following reaction takes
place:
C2H4(g) +
H2O2(g) =
CH2OHCH2OH(g)
Calculate the volume of the sample after the reaction takes place
(assume temperature and pressure are constant).
L
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