Question 1

What is the vapor pressure of geraniol,molar mass 155 g/mol,if the density of the vapor at 260S1U1P1$\circ$S1S1P0C is 0.480 g/L?

Accepted Answer

A) 50.2 Torr 
B) 103 Torr 
C) 0.0661 Torr 
D) 0.103 Torr 
A) 50.2 Torr 
B) 103 Torr 
C) 0.0661 Torr 
D) 0.103 Torr

Question 2

All of the following elements are gases at room temperature and atmospheric pressure except

Accepted Answer

A) Rn 
B) F 
C) Br 
D) N 
E) Cl 
A) Rn 
B) F 
C) Br 
D) N 
E) Cl

Question 3

A sample of nitrogen gas collected at 24S1U1P1$\circ$S1S1P0C and 745 Torr has a vapor pressure of 745 Torr.True or false?

Accepted Answer

A) True 
 B)False

Question 4

What is the molar volume of a nitrogen gas at -27.0oC and 1 atm?

Accepted Answer

A) 2.22 L 
B) 22.4 L 
C) 24.6 L 
D) 20.2 L 
A) 2.22 L 
B) 22.4 L 
C) 24.6 L 
D) 20.2 L

Question 5

At 80.0S1U1P1$\circ$S1S1P0C and 12.0 Torr,the density of camphor vapor is 0.0829 g.L-1 .What is the molar mass of camphor?

Accepted Answer

A) 243 g.mol-1  
B) 34.5 g.mol-1  
C) 152 g.mol-1  
D) 3490 g.mol-1  
E) 20.3 g.mol-1  
A) 243 g.mol-1  
B) 34.5 g.mol-1  
C) 152 g.mol-1  
D) 3490 g.mol-1  
E) 20.3 g.mol-1

Question 6

What volume is occupied by 50.0 g of chlorine gas at 10.00°C at a pressure of 755 Torr?

Accepted Answer

A) 1.53 L 
B) 8.2 L 
C) 16.4 L 
D) 0.64 L 
E) 181 L 
A) 1.53 L 
B) 8.2 L 
C) 16.4 L 
D) 0.64 L 
E) 181 L

Question 7

If it takes 15 s for a certain sample of neon to effuse through a porous barrier,it will take ________________________________ (15 s,greater than 15 s,less than 15 s)for the same amount of nitrogen gas to effuse through the barrier under the same conditions.

Accepted Answer

The answer of If it takes 15 s for a...

Question 8

A 6.00-L sample of C2H4(g)at 2.00 atm and 293 K is burned in 6.00 L of oxygen gas at the same temperature and pressure to form carbon dioxide and water.If the reaction goes to completion,what is the final volume of all gases at 2.00 atm and 293 K?

Accepted Answer

A) 2.66 L 
B) 6.00 L 
C) 2.00 L 
D) 1.33 L 
E) 4.00 L 
A) 2.66 L 
B) 6.00 L 
C) 2.00 L 
D) 1.33 L 
E) 4.00 L

Question 9

An oxygen tank kept at 20S1U1P1$\circ$S1S1P0C contains 28.0 moles of oxygen and the gauge reads 31.0 atm.After two weeks,the gauge reads 10.5 atm.How many moles of oxygen were used during the two-week period?

Accepted Answer

A) 9.25 moles 
B) 7.5 moles 
C) 20.5 moles 
D) 18.5 moles 
E) 9.48 moles 
A) 9.25 moles 
B) 7.5 moles 
C) 20.5 moles 
D) 18.5 moles 
E) 9.48 moles

Question 10

What mass of aluminum metal is required to produce 12.5 L of hydrogen gas at exactly 25S1U1P1$\circ$S1S1P0C and 1.00 atm? 
2Al(s)+ 6H+(aq)$\rightarrow$ 2Al3+(aq)+ 3H2(g)

Accepted Answer

A) 20.7 g 
B) 22.6 g 
C) 10.0 g 
D) 13.8 g 
E) 9.19 g 
A) 20.7 g 
B) 22.6 g 
C) 10.0 g 
D) 13.8 g 
E) 9.19 g

Question 11

A badly tuned automobile engine can release about 50 moles of carbon dioxide per hour.At 35S1U1P1$\circ$S1S1P0C,what volume of carbon dioxide is released in a six-hour period if the atmospheric pressure is 740 Torr?

Accepted Answer

A) 7.9 * 105 L 
B) 7.8 * 103 L 
C) 1.3 * 103 L 
D) 10 L 
E) 1.3 * 105 L 
A) 7.9 * 105 L 
B) 7.8 * 103 L 
C) 1.3 * 103 L 
D) 10 L 
E) 1.3 * 105 L

Question 12

What mass of aluminum metal is required to produce 4.48 L of hydrogen gas at exactly 0S1U1P1$\circ$S1S1P0C and 5.00 atm by reaction of the metal with excess strong acid?

Accepted Answer

A) 1.80 g 
B) 9.00 g 
C) 36.0 g 
D) 18.0 g 
E) 180 g 
A) 1.80 g 
B) 9.00 g 
C) 36.0 g 
D) 18.0 g 
E) 180 g

Question 13

The following experiment was carried out using a newly synthesized chlorofluorocarbon.Exactly 50 mL of the gas effused through a porous barrier in 157 s.The same volume of argon effused in 76 s under the same conditions.Which compound is the chlorofluorocarbon?

Accepted Answer

A) C2Cl4F2  
B) C2ClF5  
C) C2Cl2F4  
D) C2Cl5F 
E) C2Cl3F3  
A) C2Cl4F2  
B) C2ClF5  
C) C2Cl2F4  
D) C2Cl5F 
E) C2Cl3F3

Question 14

Calculate the pressure of 4.00 g of nitrogen gas in a 1.00-L container at 20.0S1U1P1$\circ$S1S1P0C.

Accepted Answer

A) 0.469 atm 
B) 6.87 atm 
C) 96.2 atm 
D) 0.235 atm 
E) 3.44 atm 
A) 0.469 atm 
B) 6.87 atm 
C) 96.2 atm 
D) 0.235 atm 
E) 3.44 atm

Question 15

How many liters of carbon dioxide measured at 25.0S1U1P1$\circ$S1S1P0C and 821 Torr would be produced by the combustion of 319 g of glucose,C6H12O6?

Accepted Answer

A) 3.37 L 
B) 40.1 L 
C) 241 L 
D) 20.2 L 
A) 3.37 L 
B) 40.1 L 
C) 241 L 
D) 20.2 L

Question 16

The root mean square speed of nitrogen molecules in air at 20S1U1P1$\circ$S1S1P0C is 511 m/s in a certain container.If the gas is allowed to expand to twice its original volume,the root mean square velocity of nitrogen molecules drops to 325 m/s.Calculate the temperature after the gas has expanded.

Accepted Answer

The answer of The root mean square speed of nitrogen...

Question 17

The density of the vapor of allicin,a component of garlic,is 1.14 g.L-1 at 125S1U1P1$\circ$S1S1P0C and 175 Torr.What is the molar mass of allicin?

Accepted Answer

A) 21.6 g.mol-1  
B) 50.8 g.mol-1  
C) 273 g.mol-1  
D) 869 g.mol-1  
E) 162 g.mol-1  
A) 21.6 g.mol-1  
B) 50.8 g.mol-1  
C) 273 g.mol-1  
D) 869 g.mol-1  
E) 162 g.mol-1

Question 18

What is the density of xenon gas at 750 kPa and 25S1U1P1$\circ$S1S1P0C?

Accepted Answer

A) 5.30 g.L-1  
B) 0.392 g.L-1  
C) 39.7 g.L-1  
D) 79.5 g.L-1  
E) 19.9 g.L-1  
A) 5.30 g.L-1  
B) 0.392 g.L-1  
C) 39.7 g.L-1  
D) 79.5 g.L-1  
E) 19.9 g.L-1

Question 19

Which of the following gases effuses slowest?

Accepted Answer

A) Fluorine 
B) Carbon dioxide 
C) Chlorine 
D) Carbon monoxide 
E) Nitrogen 
A) Fluorine 
B) Carbon dioxide 
C) Chlorine 
D) Carbon monoxide 
E) Nitrogen

Question 20

What is the density of nitrogen gas at 740 Torr and -12S1U1P1$\circ$S1S1P0C?

Accepted Answer

A) 0.637 g.L-1  
B) 1.17 g.L-1  
C) 1.27 g.L-1  
D) 2.55 g.L-1  
E) 9.56 g.L-1  
A) 0.637 g.L-1  
B) 1.17 g.L-1  
C) 1.27 g.L-1  
D) 2.55 g.L-1  
E) 9.56 g.L-1

What is the vapor pressure of geraniol,molar mass 155 g/mol,if the density of the vapor at 260^$\circ$C is 0.480 g/L?

All of the following elements are gases at room temperature and atmospheric pressure except

A sample of nitrogen gas collected at 24^$\circ$C and 745 Torr has a vapor pressure of 745 Torr.True or false?

What is the molar volume of a nitrogen gas at -27.0^oC and 1 atm?

At 80.0^$\circ$C and 12.0 Torr,the density of camphor vapor is 0.0829 g.L^-¹.What is the molar mass of camphor?

What volume is occupied by 50.0 g of chlorine gas at 10.00°C at a pressure of 755 Torr?

If it takes 15 s for a certain sample of neon to effuse through a porous barrier,it will take ________________________________ (15 s,greater than 15 s,less than 15 s)for the same amount of nitrogen gas to effuse through the barrier under the same conditions.

A 6.00-L sample of C₂H₄(g)at 2.00 atm and 293 K is burned in 6.00 L of oxygen gas at the same temperature and pressure to form carbon dioxide and water.If the reaction goes to completion,what is the final volume of all gases at 2.00 atm and 293 K?

An oxygen tank kept at 20^$\circ$C contains 28.0 moles of oxygen and the gauge reads 31.0 atm.After two weeks,the gauge reads 10.5 atm.How many moles of oxygen were used during the two-week period?

What mass of aluminum metal is required to produce 12.5 L of hydrogen gas at exactly 25^$\circ$C and 1.00 atm? 2Al(s)+ 6H⁺(aq) $\rightarrow$ 2Al³⁺(aq)+ 3H₂(g)

A badly tuned automobile engine can release about 50 moles of carbon dioxide per hour.At 35^$\circ$C,what volume of carbon dioxide is released in a six-hour period if the atmospheric pressure is 740 Torr?

What mass of aluminum metal is required to produce 4.48 L of hydrogen gas at exactly 0^$\circ$C and 5.00 atm by reaction of the metal with excess strong acid?

The following experiment was carried out using a newly synthesized chlorofluorocarbon.Exactly 50 mL of the gas effused through a porous barrier in 157 s.The same volume of argon effused in 76 s under the same conditions.Which compound is the chlorofluorocarbon?

Calculate the pressure of 4.00 g of nitrogen gas in a 1.00-L container at 20.0^$\circ$C.

How many liters of carbon dioxide measured at 25.0^$\circ$C and 821 Torr would be produced by the combustion of 319 g of glucose,C₆H₁₂O₆?

The root mean square speed of nitrogen molecules in air at 20^$\circ$C is 511 m/s in a certain container.If the gas is allowed to expand to twice its original volume,the root mean square velocity of nitrogen molecules drops to 325 m/s.Calculate the temperature after the gas has expanded.

The density of the vapor of allicin,a component of garlic,is 1.14 g.L^-¹at 125^$\circ$C and 175 Torr.What is the molar mass of allicin?

What is the density of xenon gas at 750 kPa and 25^$\circ$C?

Which of the following gases effuses slowest?

What is the density of nitrogen gas at 740 Torr and -12^$\circ$C?

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Chemical Bonds

Molecular Shape and Structure

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

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Exam 5: The Properties of Gases

What is the vapor pressure of geraniol,molar mass 155 g/mol,if the density of the vapor at 260 ∘\circ∘ C is 0.480 g/L?

All of the following elements are gases at room temperature and atmospheric pressure except

A sample of nitrogen gas collected at 24 ∘\circ∘ C and 745 Torr has a vapor pressure of 745 Torr.True or false?

What is the molar volume of a nitrogen gas at -27.0oC and 1 atm?

At 80.0 ∘\circ∘ C and 12.0 Torr,the density of camphor vapor is 0.0829 g.L-1 .What is the molar mass of camphor?

What volume is occupied by 50.0 g of chlorine gas at 10.00°C at a pressure of 755 Torr?

If it takes 15 s for a certain sample of neon to effuse through a porous barrier,it will take ________________________________ (15 s,greater than 15 s,less than 15 s)for the same amount of nitrogen gas to effuse through the barrier under the same conditions.

A 6.00-L sample of C2H4(g)at 2.00 atm and 293 K is burned in 6.00 L of oxygen gas at the same temperature and pressure to form carbon dioxide and water.If the reaction goes to completion,what is the final volume of all gases at 2.00 atm and 293 K?

An oxygen tank kept at 20 ∘\circ∘ C contains 28.0 moles of oxygen and the gauge reads 31.0 atm.After two weeks,the gauge reads 10.5 atm.How many moles of oxygen were used during the two-week period?

What mass of aluminum metal is required to produce 12.5 L of hydrogen gas at exactly 25 ∘\circ∘ C and 1.00 atm? 2Al(s)+ 6H+(aq) →\rightarrow→ 2Al3+(aq)+ 3H2(g)

A badly tuned automobile engine can release about 50 moles of carbon dioxide per hour.At 35 ∘\circ∘ C,what volume of carbon dioxide is released in a six-hour period if the atmospheric pressure is 740 Torr?

What mass of aluminum metal is required to produce 4.48 L of hydrogen gas at exactly 0 ∘\circ∘ C and 5.00 atm by reaction of the metal with excess strong acid?

The following experiment was carried out using a newly synthesized chlorofluorocarbon.Exactly 50 mL of the gas effused through a porous barrier in 157 s.The same volume of argon effused in 76 s under the same conditions.Which compound is the chlorofluorocarbon?

Calculate the pressure of 4.00 g of nitrogen gas in a 1.00-L container at 20.0 ∘\circ∘ C.

How many liters of carbon dioxide measured at 25.0 ∘\circ∘ C and 821 Torr would be produced by the combustion of 319 g of glucose,C6H12O6?

The root mean square speed of nitrogen molecules in air at 20 ∘\circ∘ C is 511 m/s in a certain container.If the gas is allowed to expand to twice its original volume,the root mean square velocity of nitrogen molecules drops to 325 m/s.Calculate the temperature after the gas has expanded.

The density of the vapor of allicin,a component of garlic,is 1.14 g.L-1 at 125 ∘\circ∘ C and 175 Torr.What is the molar mass of allicin?

What is the density of xenon gas at 750 kPa and 25 ∘\circ∘ C?

Which of the following gases effuses slowest?

What is the density of nitrogen gas at 740 Torr and -12 ∘\circ∘ C?

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters

What is the vapor pressure of geraniol,molar mass 155 g/mol,if the density of the vapor at 260^$\circ$C is 0.480 g/L?

A sample of nitrogen gas collected at 24^$\circ$C and 745 Torr has a vapor pressure of 745 Torr.True or false?

What is the molar volume of a nitrogen gas at -27.0^oC and 1 atm?

At 80.0^$\circ$C and 12.0 Torr,the density of camphor vapor is 0.0829 g.L^-¹.What is the molar mass of camphor?

A 6.00-L sample of C₂H₄(g)at 2.00 atm and 293 K is burned in 6.00 L of oxygen gas at the same temperature and pressure to form carbon dioxide and water.If the reaction goes to completion,what is the final volume of all gases at 2.00 atm and 293 K?

An oxygen tank kept at 20^$\circ$C contains 28.0 moles of oxygen and the gauge reads 31.0 atm.After two weeks,the gauge reads 10.5 atm.How many moles of oxygen were used during the two-week period?

What mass of aluminum metal is required to produce 12.5 L of hydrogen gas at exactly 25^$\circ$C and 1.00 atm? 2Al(s)+ 6H⁺(aq) $\rightarrow$ 2Al³⁺(aq)+ 3H₂(g)

A badly tuned automobile engine can release about 50 moles of carbon dioxide per hour.At 35^$\circ$C,what volume of carbon dioxide is released in a six-hour period if the atmospheric pressure is 740 Torr?

What mass of aluminum metal is required to produce 4.48 L of hydrogen gas at exactly 0^$\circ$C and 5.00 atm by reaction of the metal with excess strong acid?

Calculate the pressure of 4.00 g of nitrogen gas in a 1.00-L container at 20.0^$\circ$C.

How many liters of carbon dioxide measured at 25.0^$\circ$C and 821 Torr would be produced by the combustion of 319 g of glucose,C₆H₁₂O₆?

The root mean square speed of nitrogen molecules in air at 20^$\circ$C is 511 m/s in a certain container.If the gas is allowed to expand to twice its original volume,the root mean square velocity of nitrogen molecules drops to 325 m/s.Calculate the temperature after the gas has expanded.

The density of the vapor of allicin,a component of garlic,is 1.14 g.L^-¹at 125^$\circ$C and 175 Torr.What is the molar mass of allicin?

What is the density of xenon gas at 750 kPa and 25^$\circ$C?

What is the density of nitrogen gas at 740 Torr and -12^$\circ$C?