Calculate the density, in g/L, of N2 gas at 35°C and 0.98 atm pressure.

A) 0.039 g/L B) 0.34 g/L C) 0.54 g/L D) 1.1 g/L E) 9.6 g/L A) 0.039 g/L B) 0.34 g/L C) 0.54 g/L D) 1.1 g/L E) 9.6 g/L

Air contains 78% N2, 21% O2, and 1% Ar, by volume.What is the density of air at 1,000.torr and -10°C?

A) 0.56 g/L B) 1.0 g/L C) 1.3 g/L D) 1.8 g/L E) 6.1 g/L A) 0.56 g/L B) 1.0 g/L C) 1.3 g/L D) 1.8 g/L E) 6.1 g/L

Exam 5: Gases | Examlex

On a spring morning (20.°C)you fill your tires to a pressure of 2.25 atmospheres.As you ride along, the tire heats up to 45°C from the friction on the road.What is the pressure in your tires now in units of atmospheres?

(Short Answer)

4.8/5

(82)

Question 81

What is the pressure (mmHg)of the sample of gas trapped in the closed-tube mercury manometer shown below if atmospheric pressure is 751 mmHg and h = 17.3 cm?

(Short Answer)

4.9/5

(66)

Question 82

Define Dalton's Law

(Short Answer)

4.8/5

(77)

Question 83

Which gas has molecules with the greatest average molecular speed at 25°C?

(Multiple Choice)

4.8/5

(77)

Question 84

At constant pressure, the density of a gas depends on temperature.Does the density increase or decrease as the temperature increases?

(Short Answer)

4.9/5

(79)

Question 85

Calculate the density, in g/L, of N₂ gas at 35°C and 0.98 atm pressure.

(Multiple Choice)

4.9/5

(68)

Question 86

Ammonium nitrite undergoes decomposition to produce only gases as shown below. NH₄NO₂(s) $\rarr$ N₂(g)+ 2H₂O(g) How many liters of gas will be produced by the decomposition of 32.0 g of NH₄NO₂ at 525°C and 1.5 atm?

(Short Answer)

4.9/5

(78)

Question 87

The van der Waals equation is a modification of the ideal gas equation.What two factors does this equation account for?

(Essay)

4.8/5

(82)

Question 88

A gaseous compound is 30.4% nitrogen and 69.6% oxygen by mass.A 5.25-g sample of the gas occupies a volume of 1.00 L and exerts a pressure of 1.26 atm at -4.0°C.Which of these choices is its molecular formula?

(Multiple Choice)

4.8/5

(82)

Question 89

At what temperature will a sample of oxygen gas with a volume of 0.110 L at 12°C and 822 mmHg occupy a volume of 345 mL at a pressure of 578 mm Hg? Assume the amount of the oxygen gas does not change.

(Multiple Choice)

4.9/5

(87)

Question 90

A 250 mL flask contains 3.4 g of neon gas at 45°C.Calculate the pressure of the neon gas inside the flask.

(Multiple Choice)

4.8/5

(78)

Question 91

The gas pressure in an aerosol can is 1.8 atm at 25°C.If the gas is an ideal gas, what pressure would develop in the can if it were heated to 475°C?

(Multiple Choice)

5.0/5

(74)

Question 92

What volume of sulfur dioxide gas at 45 °C and 723 mmHg will react completely with 0.870 L of oxygen gas at constant temperature and pressure? 2 SO₂(g)+ O₂(g) $\rarr$ 2SO₃(g)

(Multiple Choice)

4.8/5

(71)

Question 93

Which of these gas molecules have the highest average kinetic energy at 25°C?

(Multiple Choice)

4.9/5

(79)

Question 94

Determine the molar mass of chloroform gas if a sample weighing 0.389 g is collected in a flask with a volume of 102 cm³ at 97°C.The pressure of the chloroform is 728 mmHg.

(Multiple Choice)

4.9/5

(87)

Question 95

The pressure of a gas sample was measured to be 654 mmHg.What is the pressure in kPa? (1 atm = 1.01325 × 10⁵ Pa)

(Multiple Choice)

4.9/5

(67)

Question 96

Give five examples (list names)of elements that occur as gases at room temperature and pressure?

(Essay)

4.8/5

(85)

Question 97

A 1.07 g sample of a Noble gas occupies a volume of 363 mL at 35°C and 678 mmHg.Identify the Noble gas in this sample? (R = 0.08206 L.atm/K.mol)

(Multiple Choice)

4.9/5

(100)

Question 98

For a substance that remains a gas under the conditions listed, deviation from the ideal gas law would be most pronounced at

(Multiple Choice)

4.9/5

(81)

Question 99

Air contains 78% N₂, 21% O₂, and 1% Ar, by volume.What is the density of air at 1,000.torr and -10°C?

(Multiple Choice)

4.7/5

(83)

Question 100

Showing 81 - 100 of 121

Exam 5: Gases

On a spring morning (20.°C)you fill your tires to a pressure of 2.25 atmospheres.As you ride along, the tire heats up to 45°C from the friction on the road.What is the pressure in your tires now in units of atmospheres?

What is the pressure (mmHg)of the sample of gas trapped in the closed-tube mercury manometer shown below if atmospheric pressure is 751 mmHg and h = 17.3 cm?

Define Dalton's Law

Which gas has molecules with the greatest average molecular speed at 25°C?

At constant pressure, the density of a gas depends on temperature.Does the density increase or decrease as the temperature increases?

Calculate the density, in g/L, of N2 gas at 35°C and 0.98 atm pressure.

Ammonium nitrite undergoes decomposition to produce only gases as shown below. NH4NO2(s) →\rarr→ N2(g)+ 2H2O(g) How many liters of gas will be produced by the decomposition of 32.0 g of NH4NO2 at 525°C and 1.5 atm?

The van der Waals equation is a modification of the ideal gas equation.What two factors does this equation account for?

A gaseous compound is 30.4% nitrogen and 69.6% oxygen by mass.A 5.25-g sample of the gas occupies a volume of 1.00 L and exerts a pressure of 1.26 atm at -4.0°C.Which of these choices is its molecular formula?

At what temperature will a sample of oxygen gas with a volume of 0.110 L at 12°C and 822 mmHg occupy a volume of 345 mL at a pressure of 578 mm Hg? Assume the amount of the oxygen gas does not change.

A 250 mL flask contains 3.4 g of neon gas at 45°C.Calculate the pressure of the neon gas inside the flask.

The gas pressure in an aerosol can is 1.8 atm at 25°C.If the gas is an ideal gas, what pressure would develop in the can if it were heated to 475°C?

What volume of sulfur dioxide gas at 45 °C and 723 mmHg will react completely with 0.870 L of oxygen gas at constant temperature and pressure? 2 SO2(g)+ O2(g) →\rarr→ 2SO3(g)

Which of these gas molecules have the highest average kinetic energy at 25°C?

Determine the molar mass of chloroform gas if a sample weighing 0.389 g is collected in a flask with a volume of 102 cm3 at 97°C.The pressure of the chloroform is 728 mmHg.

The pressure of a gas sample was measured to be 654 mmHg.What is the pressure in kPa? (1 atm = 1.01325 × 105 Pa)

Give five examples (list names)of elements that occur as gases at room temperature and pressure?

A 1.07 g sample of a Noble gas occupies a volume of 363 mL at 35°C and 678 mmHg.Identify the Noble gas in this sample? (R = 0.08206 L.atm/K.mol)

For a substance that remains a gas under the conditions listed, deviation from the ideal gas law would be most pronounced at

Air contains 78% N2, 21% O2, and 1% Ar, by volume.What is the density of air at 1,000.torr and -10°C?

Chemistry: the Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Calculate the density, in g/L, of N₂ gas at 35°C and 0.98 atm pressure.

Ammonium nitrite undergoes decomposition to produce only gases as shown below. NH₄NO₂(s) $\rarr$ N₂(g)+ 2H₂O(g) How many liters of gas will be produced by the decomposition of 32.0 g of NH₄NO₂ at 525°C and 1.5 atm?

What volume of sulfur dioxide gas at 45 °C and 723 mmHg will react completely with 0.870 L of oxygen gas at constant temperature and pressure? 2 SO₂(g)+ O₂(g) $\rarr$ 2SO₃(g)

Determine the molar mass of chloroform gas if a sample weighing 0.389 g is collected in a flask with a volume of 102 cm³ at 97°C.The pressure of the chloroform is 728 mmHg.

The pressure of a gas sample was measured to be 654 mmHg.What is the pressure in kPa? (1 atm = 1.01325 × 10⁵ Pa)

Air contains 78% N₂, 21% O₂, and 1% Ar, by volume.What is the density of air at 1,000.torr and -10°C?