## Transcribed Text

Question 1
1 pts
A gaseous mixture made from 35.62 g N2, 32.03 g G2H2, and 30.72 g of CO is placed in a 30.39 L
vessel at 24.5 °C. What is the total pressure in the vessel? Remember, the gas constant, R, equals
0.08206 L"atm/(mol*K) and K = °C + -273.15.
Question 2
1 pts
Calcium carbonate, CaCO2, decomposes upon heating to form CO2 gas according to the following
balanced chemical equation. When a sample of CaCO2 was decomposed in a test tube, 626 mL of
CO2 gas was collected over water at 32,0 °C and the total pressure was 800 torr. The vapor pressure
of water at 32,0°C is 36 torr and 1 atm = 760 torr.
How many grams of CO2 were collected?
Question 3
1 pts
Calculate the root mean square velocity of a molecule that has a molar mass. M. of 49,85 g/mo
at a temperature of 43,72 °C using the equation below For this celculation the gasconstant R is
expressed as 8314 and the molar mass. M. needs to be converted to kg/mol.
a
Question 3
1 pts
Calculate the root mean square velocity, Vems- of a molecule that has a molar mass, M, of 49,85 g/mol
at a temperature of 43.72 °C using the equation below. For this calculation the gas constant, R, is
expressed as 8.314 J/(mol*K) and the molar mass, M, needs to be converted to kg/mol.
3.TR
Ums
M
Question 4
1 pts
Using the Van der Waals equation for a non-ideal gas below, calculate the pressure, P, of a system that
contains
55.246
g
of
CO2
in
volume
of
229,42
mL
at
a
temperature
of
32,77°C.
The
correction
factors
for this gas are 3.59 and 0.0427 for a and b, respectively.
) (V-nb) - - n.TR
Question 5
1 pts
Using the combined gas law below. calculate the volume, in liters at standaro temperature and
pressure STP) for a gas that has 2 volume of 28.286 mL a pressure of 1.964.atm and a temperature
Peroli that the 1
arch
Using the Van der Waals equation for a non-ideal gas below, calculate the pressure, P, of a system that
contains 55246 g of CO2 in volume of 229.42 mL at a temperature of 32,77°C The correction factors
for this gas are 3,59 and 0.0427 for a and b, respectively.
- -
1 pts
>
Question 5
Using the combined gas law below, calculate the volume, in liters, at standard temperature and
pressure (STP) for a gas that has avolume of 28.286 mL, a pressure of 1.964 atm, and a temperature
of 23,55 °C. Recail that the Pstp = 1.00 atm and the TSTP = 273.15K
P1V
P2V2
T1
T2
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