Question

1/ **0.987** mol sample of **xenon**
gas at a temperature of **19.0** °C is found to occupy
a volume of **28.2** liters. The pressure of this gas
sample is .... mm Hg.

2/ A sample of **nitrogen** gas collected at a
pressure of **477** mm Hg and a temperature of
**278** K has a mass of **20.0** grams.
The volume of the sample is ...... L.

3/ A **4.97** gram sample of **carbon
dioxide** gas has a volume of **856**
milliliters at a pressure of **3.92** atm. The
temperature of the **CO _{2}** gas sample is
...... °C.

4/ A mixture of **xenon** and
**hydrogen** gases, in a **9.38** L flask
at **77** °C, contains **11.1** grams of
**xenon** and **0.436** grams of
**hydrogen**. The partial pressure of
**hydrogen** in the flask is

(......) atm and the total pressure in the flask is (.......) atm.

5/ A mixture of **nitrogen** and
**neon** gases is maintained in a
**5.23** L flask at a pressure of
**3.02** atm and a temperature of **59**
°C. If the gas mixture contains **8.18** grams of
**nitrogen**, the number of grams of
**neon** in the mixture is ...... g.

6/ The stopcock connecting a **3.15** L bulb
containing **carbon dioxide** gas at a pressure of
**9.69** atm, and a **4.15** L bulb
containing **xenon** gas at a pressure of
**2.59** atm, is opened and the gases are allowed to
mix. Assuming that the temperature remains constant, the final
pressure in the system is .... atm.

7/ A mixture of **xenon** and
**hydrogen** gases, at a total pressure of
**647** mm Hg, contains **10.3** grams of
**xenon** and **0.403** grams of
**hydrogen**. What is the partial pressure of each gas
in the mixture?

P_{Xe} = (.......) mm Hg

P_{H2} = (.......) mm Hg

8/ A mixture of **nitrogen** and
**neon** gases contains **nitrogen** at a
partial pressure of **437** mm Hg and
**neon** at a partial pressure of **429**
mm Hg. What is the mole fraction of each gas in the
mixture?

X_{N2} = .....

X_{Ne} = .....

9/ A mixture of **carbon dioxide** and
**xenon** gases at a total pressure of
**973** mm Hg contains **carbon dioxide**
at a partial pressure of **426** mm Hg. If the gas
mixture contains **7.58** grams of **carbon
dioxide**, how many grams of **xenon**are
present?

= (......) g **Xe**

Answer #1

1)

Given:

V = 28.2 L

n = 0.987 mol

T = 19.0 oC

= (19.0+273) K

= 292 K

use:

P * V = n*R*T

P * 28.2 L = 0.987 mol* 0.08206 atm.L/mol.K * 292 K

P = 0.8387 atm

= 0.8387 * 760 mmHg

= 637 mmHg

Answer: 637 mmHg

2)

Molar mass of N2 = 28.02 g/mol

mass(N2)= 20.0 g

use:

number of mol of N2,

n = mass of N2/molar mass of N2

=(20 g)/(28.02 g/mol)

= 0.7138 mol

Given:

P = 477.0 mm Hg

= (477.0/760) atm

= 0.6276 atm

n = 0.7138 mol

T = 278.0 K

use:

P * V = n*R*T

0.6276 atm * V = 0.7138 mol* 0.08206 atm.L/mol.K * 278 K

V = 25.9 L

Answer: 25.9 L

Only 1 question at a time please

1/ The stopcock connecting a 3.15 L bulb
containing carbon dioxide gas at a pressure of
9.69 atm, and a 4.15 L bulb
containing xenon gas at a pressure of
2.59 atm, is opened and the gases are allowed to
mix. Assuming that the temperature remains constant, the final
pressure in the system is .... atm.
2/ A mixture of xenon and
hydrogen gases, at a total pressure of
647 mm Hg, contains 10.3 grams
ofxenon and 0.403 grams of...

part a.) A mixture of neon and xenon gases is maintained in a
9.44 L flask at a pressure of 3.71 atm and a temperature of 39 °C.
If the gas mixture contains 10.5 grams of neon, the number of grams
of xenon in the mixture is_____ g.
part b.) The stopcock connecting a 3.94 L bulb
containing hydrogen gas at a pressure of
8.05 atm, and a 4.18 L bulb
containing neon gas at a pressure of
1.61 atm,...

16.1 A mixture of xenon and
nitrogen gases, at a total pressure of
904 mm Hg, contains 21.9 grams of
xenon and 2.37 grams of
nitrogen. What is the partial pressure of each gas
in the mixture?
PXe = _____ mm Hg
PN2 = ______ mm Hg
A mixture of methane and
hydrogen gases contains methane
at a partial pressure of 381 mm Hg and
hydrogen at a partial pressure of
257 mm Hg. What is the mole fraction of each...

1a/ A sample of xenon gas at a pressure of
0.679 atm and a temperature of 282
°C, occupies a volume of 569 mL. If the
gas is cooled at constant pressure until its
volume is 476 mL, the temperature of the gas
sample will be (........) °C.
1b/ A sample of nitrogen gas at a pressure of
876 mm Hg and a temperature of 26
°C, occupies a volume of 10.1 liters. If
the gas is heated at constant...

Q1) A mixture of krypton and nitrogen gases, at a total pressure
of 711 mm Hg, contains 11.7 grams of krypton and 4.10 grams of
nitrogen. What is the partial pressure of each gas in the
mixture?
PKr = _____mm Hg
PN2 =_____mm Hg
Q2) A mixture of krypton and
neon gases contains krypton at a
partial pressure of 460 mm Hg and
neon at a partial pressure of 482
mm Hg. What is the mole fraction of each gas...

1/ A sample of xenon gas that occupies a volume
of 42.7 L at a temperature of 0 °C and a pressure
of 1 atm contains (......) moles of gas.
2/ A sample of nitrogen gas collected at STP
occupies a volume of 13.4 L. How many moles of gas
does the sample contain? (.......) mol
3/ What volume is occupied by a 0.920 mol
sample of carbon dioxide gas at a temperature of 0
°C and a pressure of...

A mixture of carbon dioxide and neon gases, in a 8.59 L flask at
56 °C, contains 12.8 grams of carbon dioxide and 1.86 grams of
neon. The partial pressure of neon in the flask is_____ atm and the
total pressure in the flask is ______atm.

A mixture of oxygen and argon
gases, at a total pressure of 740 mm Hg, contains
6.32 grams of oxygen and
3.81 grams of argon. What is the
partial pressure of each gas in the mixture?
PO2 = mm
Hg
PAr = mm Hg
A mixture of neon and helium
gases contains neon at a partial pressure of
181 mm Hg and helium at a partial
pressure of 508 mm Hg. What is the mole fraction
of each gas in the mixture?...

A mixture of nitrogen and
krypton gases is maintained in a
5.73 L flask at a pressure of
1.34 atm and a temperature of 34
°C. If the gas mixture contains 3.73 grams of
nitrogen, the number of grams of
krypton in the mixture is ____
The stopcock connecting a 3.55 L bulb containing
krypton gas at a pressure of 5.21
atm, and a 9.64 L bulb containing
helium gas at a pressure of 2.14
atm, is opened and the...

A mixture of neon and hydrogen gases, in a 9.30 L flask at 27
°C, contains 2.09 grams of neon and 0.637 grams of hydrogen. The
partial pressure of hydrogen in the flask is _____ atm and the
total pressure in the flask is _____ atm.

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 4 minutes ago

asked 25 minutes ago

asked 27 minutes ago

asked 33 minutes ago

asked 40 minutes ago

asked 40 minutes ago

asked 50 minutes ago

asked 51 minutes ago

asked 52 minutes ago

asked 58 minutes ago

asked 58 minutes ago

asked 58 minutes ago