How many liters of H2 are needed to make 327 L of NH3 by the reaction: N2(g)+ 3 H2(g)→ 2 NH3(g), If the gases are at the same temperature and pressure?

A) 654 L B) 491 L C) 218 L D) 38.5 L E) 327 L A) 654 L B) 491 L C) 218 L D) 38.5 L E) 327 L

What pressure must be applied to N2(g)to obtain a density of 2.00 g/L at 25 °C?

A) 1.75 atm B) 0.146 atm C) 111 atm D) 3.49 atm E) 2.29 atm A) 1.75 atm B) 0.146 atm C) 111 atm D) 3.49 atm E) 2.29 atm

When one volume of CO reacts with one volume of Cl2 phosgene is obtained as the only product.What is empirical formula of phosgene?

A) COCl2 B) C2O2Cl2 C) C2O2Cl D) C3O3Cl2 E) COCl4 A) COCl2 B) C2O2Cl2 C) C2O2Cl D) C3O3Cl2 E) COCl4

The complete combustion of octane,a component of gasoline,is represented by the equation: 2 C8H18(l)+ 25 O2(g)→ 16 CO2(g)+ 18 H2O(l) How many liters of CO2(g),measured at 63.1 °C and 688 mmHg,are produced for every gallon of octane burned?

A) 7.48 L B) 7.11 × 102 L C) 5.68 × 103 L D) 5.68 L E) 1.07 × 103 L A) 7.48 L B) 7.11 × 102 L C) 5.68 × 103 L D) 5.68 L E) 1.07 × 103 L

Exam 6: Gases | Examlex

What is the pressure in a gas container that is connected to an open-end U-tube manometer if the pressure of the atmosphere is 742 Torr and the level of mercury in the arm connected to the container is 8.60 cm higher than the level of mercury open to the atmosphere?

(Multiple Choice)

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Question 41

A 500.0 mL sample of O₂(g)is at 780 mmHg and 30 °C.What will be the new volume if,with constant pressure and amount of gas,the temperature is decreased to -15 °C?

(Multiple Choice)

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Question 42

Butane (C₄H₁₀)is used as a fuel where natural gas is not available.How many grams of butane will fill a 3.50 liter container at 35.6 °C and 758 Torr?

(Multiple Choice)

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Question 43

A container filled with gas is connected to an open-end manometer that is filled with mineral oil.The pressure in the gas container is 753 mmHg and atmospheric pressure is 724 mmHg.How high will the level rise in the manometer if the densities of Hg and mineral oil are 13.6 g mL^-1 and 0.822 g mL^-1,respectively?

(Multiple Choice)

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Question 44

How many liters of H₂ are needed to make 327 L of NH₃ by the reaction: N₂(g)+ 3 H₂(g)→ 2 NH₃(g), If the gases are at the same temperature and pressure?

(Multiple Choice)

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Question 45

If 4.800 × 10^-5mol of uranium-238 at 4500 K effuses through a hole in 125 seconds,how many mol of uranium-235 will effuse through the same hole,at the same temperature and in the same amount of time?

(Multiple Choice)

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Question 46

The fact that a balloon filled with helium will leak more slowly than one filled with hydrogen is explained by citing:

(Multiple Choice)

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Question 47

What pressure must be applied to N₂(g)to obtain a density of 2.00 g/L at 25 °C?

(Multiple Choice)

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Question 48

How many liters of gas is 23.4 grams of nitrogen at 750 mmHg and 28.0 °C?

(Multiple Choice)

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Question 49

The volume correction term in the van der Waals equation is present because:

(Multiple Choice)

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Question 50

Of the following gases,the one with the greatest density at STP is:

(Multiple Choice)

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Question 51

The mutual attraction of gas molecules is an important aspect of:

(Multiple Choice)

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Question 52

Pressure is a force per unit area with the SI unit of 1 pascal.

(True/False)

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Question 53

When one volume of CO reacts with one volume of Cl₂phosgene is obtained as the only product.What is empirical formula of phosgene?

(Multiple Choice)

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Question 54

The complete combustion of octane,a component of gasoline,is represented by the equation: 2 C₈H₁₈(l)+ 25 O₂(g)→ 16 CO₂(g)+ 18 H₂O(l) How many liters of CO₂(g),measured at 63.1 °C and 688 mmHg,are produced for every gallon of octane burned?

(Multiple Choice)

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Question 55

According to the kinetic-molecular theory of gases:

(Multiple Choice)

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Question 56

Gas densities depend strongly on gas temperature and pressure.

(True/False)

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Question 57

If CO₂ and NH₃ are allowed to effuse through a porous membrane under identical conditions,the rate of effusion for NH₃ will be ________ times that of CO.

(Multiple Choice)

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Question 58

The statement,"For a fixed mass of gas at constant temperature,gas volume is inversely proportional to gas pressure" is known as Charles' Law.

(True/False)

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Question 59

A 34.8 mL sample of an unknown,water-insoluble gas was collected over water at 22.6 °C and a barometric pressure of 0.895 atm.When the gas was dried and chilled,it formed 114.6 mg of liquid.What was the molar mass of this substance? [The vapor pressure of water at 22.6 °C is 20.mmHg]

(Multiple Choice)

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Question 60

Showing 41 - 60 of 113

Exam 6: Gases

What is the pressure in a gas container that is connected to an open-end U-tube manometer if the pressure of the atmosphere is 742 Torr and the level of mercury in the arm connected to the container is 8.60 cm higher than the level of mercury open to the atmosphere?

A 500.0 mL sample of O2(g)is at 780 mmHg and 30 °C.What will be the new volume if,with constant pressure and amount of gas,the temperature is decreased to -15 °C?

Butane (C4H10)is used as a fuel where natural gas is not available.How many grams of butane will fill a 3.50 liter container at 35.6 °C and 758 Torr?

How many liters of H2 are needed to make 327 L of NH3 by the reaction: N2(g)+ 3 H2(g)→ 2 NH3(g), If the gases are at the same temperature and pressure?

If 4.800 × 10-5 mol of uranium-238 at 4500 K effuses through a hole in 125 seconds,how many mol of uranium-235 will effuse through the same hole,at the same temperature and in the same amount of time?

The fact that a balloon filled with helium will leak more slowly than one filled with hydrogen is explained by citing:

What pressure must be applied to N2(g)to obtain a density of 2.00 g/L at 25 °C?

How many liters of gas is 23.4 grams of nitrogen at 750 mmHg and 28.0 °C?

The volume correction term in the van der Waals equation is present because:

Of the following gases,the one with the greatest density at STP is:

The mutual attraction of gas molecules is an important aspect of:

Pressure is a force per unit area with the SI unit of 1 pascal.

When one volume of CO reacts with one volume of Cl2 phosgene is obtained as the only product.What is empirical formula of phosgene?

The complete combustion of octane,a component of gasoline,is represented by the equation: 2 C8H18(l)+ 25 O2(g)→ 16 CO2(g)+ 18 H2O(l) How many liters of CO2(g),measured at 63.1 °C and 688 mmHg,are produced for every gallon of octane burned?

According to the kinetic-molecular theory of gases:

Gas densities depend strongly on gas temperature and pressure.

If CO2 and NH3 are allowed to effuse through a porous membrane under identical conditions,the rate of effusion for NH3 will be ________ times that of CO.

The statement,"For a fixed mass of gas at constant temperature,gas volume is inversely proportional to gas pressure" is known as Charles' Law.

A 34.8 mL sample of an unknown,water-insoluble gas was collected over water at 22.6 °C and a barometric pressure of 0.895 atm.When the gas was dried and chilled,it formed 114.6 mg of liquid.What was the molar mass of this substance? [The vapor pressure of water at 22.6 °C is 20.mmHg]

Matter: Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Thermochemistry

Electrons in Atoms

The Periodic Table and Some Atomic Properties

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Valence Bond and Molecular Orbital Theories

Intermolecular Forces: Liquids and Solids

Spontaneous Change: Entropy and Gibbs Energy

Solutions and Their Physical Properties

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acidbase Equilibria

Solubility and Complex-Ion Equilibria

Electrochemistry

Chemical Kinetics

Chemistry of the Main-Group Elements I: Groups 1,2,13,and 14

Chemistry of the Main-Group Elements Ii: Groups 18,17,16,15,and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

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A 500.0 mL sample of O₂(g)is at 780 mmHg and 30 °C.What will be the new volume if,with constant pressure and amount of gas,the temperature is decreased to -15 °C?

Butane (C₄H₁₀)is used as a fuel where natural gas is not available.How many grams of butane will fill a 3.50 liter container at 35.6 °C and 758 Torr?

How many liters of H₂ are needed to make 327 L of NH₃ by the reaction: N₂(g)+ 3 H₂(g)→ 2 NH₃(g), If the gases are at the same temperature and pressure?

If 4.800 × 10^-5mol of uranium-238 at 4500 K effuses through a hole in 125 seconds,how many mol of uranium-235 will effuse through the same hole,at the same temperature and in the same amount of time?

What pressure must be applied to N₂(g)to obtain a density of 2.00 g/L at 25 °C?

When one volume of CO reacts with one volume of Cl₂phosgene is obtained as the only product.What is empirical formula of phosgene?

The complete combustion of octane,a component of gasoline,is represented by the equation: 2 C₈H₁₈(l)+ 25 O₂(g)→ 16 CO₂(g)+ 18 H₂O(l) How many liters of CO₂(g),measured at 63.1 °C and 688 mmHg,are produced for every gallon of octane burned?

If CO₂ and NH₃ are allowed to effuse through a porous membrane under identical conditions,the rate of effusion for NH₃ will be ________ times that of CO.