Chapter 4 And 5 Practice Test Paper
Chemistry AP
Chapters 4 and 5 Practice Test
1. Which of these compounds is a weak electrolyte?
A. HCl
B. CH3COOH (acetic acid)
C. C6H12O6 (glucose)
D. O2
E. NaCl
2. The balanced net ionic equation between aqueous diethyl ammonium chloride and aqueous potassium hydroxide contains which of the following species? A. KCl(s) B. 2 OH-1 C. (CH3CH2)2NH2 (aq) D. H3O+1 E. (CH3CH2)2NH2+1 (aq)
3. In the chemical reaction 5H2O2 + 2MnO4- + 6H+ ( 2Mn2+ + 8H2O + 5O2, the oxidizing agent is A. H2O2.
B. MnO4-1.
C. H+.
D. Mn2+.
E. O2.
4. It takes 32.0 seconds for ammonia gas to effuse down a capillary tube. How long will it take for hydrogen chloride …show more content…
1 : 2 C. 2 : 1 D. 1 : 3 E. 3 : 1
24. A solution contains the ions Ag+, Pb2+, and Ni2+. Dilute solutions of NaCl, Na2SO4, and Na2S are available to separate the positive ions from each other. In order to effect separation, the solutions should be added in which order?
A. Na2SO4, NaCl, Na2S B. Na2SO4, Na2S, NaCl C. Na2S, NaCl, Na2SO4 D. NaCl, Na2S, Na2SO4 E. NaCl, Na2SO4, Na2S
25. The following unbalanced equation represents a reaction that occurs in basic solution:
MnO41– + C2O42– → MnO2 + CO32–
How many moles of MnO41– are required to produce 1 mole of CO32–?
A. 4 B. 3 C. 2 D. 0.67 E. 0.33
26. Given reaction 2NH3(g) + 3Cl2(g) → N2(g) + 6HCl(g), you react 5.0 L of NH3 with 5.0 L of Cl2 measured at the same conditions in a closed container. Calculate the ratio of pressures in the container (Pfinal/Pinitial).
A. 0.75 B. 1.00 C. 1.33 D. 1.50 E. …show more content…
The valve between a 5-L tank containing a gas at 9 atm and a 10-L tank containing a gas at 6 atm is opened. Calculate the final pressure in the tanks.
A. 3 atm B. 4 atm C. 7 atm D. 15 atm E. 12 atm
28. A sample of helium gas occupies 12.4 L at 27(C and 1.00 atm. What volume will it occupy at 87(C and 1.20 atm?
A. 0.750 L B. 6.28 L C. 12.4 L D. 10.4 L E. 17.2 L
29. The root mean square velocity of HCl molecules at a given temperature is 1200 miles/hour. What is the velocity in miles/hour of He atoms at the same temperature? A. 900. mph B. 10,800 mph C. 100. mph D. 400. mph E. 3600 mph
30. Acidified permanganate solution is added to a solution of hydrogen peroxide.
Determine the number of electrons involved in this reaction.
A. 10 B. 8 C. 6 D. 4 E.
Chapters 4 and 5 Practice Test
1. Which of these compounds is a weak electrolyte?
A. HCl
B. CH3COOH (acetic acid)
C. C6H12O6 (glucose)
D. O2
E. NaCl
2. The balanced net ionic equation between aqueous diethyl ammonium chloride and aqueous potassium hydroxide contains which of the following species? A. KCl(s) B. 2 OH-1 C. (CH3CH2)2NH2 (aq) D. H3O+1 E. (CH3CH2)2NH2+1 (aq)
3. In the chemical reaction 5H2O2 + 2MnO4- + 6H+ ( 2Mn2+ + 8H2O + 5O2, the oxidizing agent is A. H2O2.
B. MnO4-1.
C. H+.
D. Mn2+.
E. O2.
4. It takes 32.0 seconds for ammonia gas to effuse down a capillary tube. How long will it take for hydrogen chloride …show more content…
1 : 2 C. 2 : 1 D. 1 : 3 E. 3 : 1
24. A solution contains the ions Ag+, Pb2+, and Ni2+. Dilute solutions of NaCl, Na2SO4, and Na2S are available to separate the positive ions from each other. In order to effect separation, the solutions should be added in which order?
A. Na2SO4, NaCl, Na2S B. Na2SO4, Na2S, NaCl C. Na2S, NaCl, Na2SO4 D. NaCl, Na2S, Na2SO4 E. NaCl, Na2SO4, Na2S
25. The following unbalanced equation represents a reaction that occurs in basic solution:
MnO41– + C2O42– → MnO2 + CO32–
How many moles of MnO41– are required to produce 1 mole of CO32–?
A. 4 B. 3 C. 2 D. 0.67 E. 0.33
26. Given reaction 2NH3(g) + 3Cl2(g) → N2(g) + 6HCl(g), you react 5.0 L of NH3 with 5.0 L of Cl2 measured at the same conditions in a closed container. Calculate the ratio of pressures in the container (Pfinal/Pinitial).
A. 0.75 B. 1.00 C. 1.33 D. 1.50 E. …show more content…
The valve between a 5-L tank containing a gas at 9 atm and a 10-L tank containing a gas at 6 atm is opened. Calculate the final pressure in the tanks.
A. 3 atm B. 4 atm C. 7 atm D. 15 atm E. 12 atm
28. A sample of helium gas occupies 12.4 L at 27(C and 1.00 atm. What volume will it occupy at 87(C and 1.20 atm?
A. 0.750 L B. 6.28 L C. 12.4 L D. 10.4 L E. 17.2 L
29. The root mean square velocity of HCl molecules at a given temperature is 1200 miles/hour. What is the velocity in miles/hour of He atoms at the same temperature? A. 900. mph B. 10,800 mph C. 100. mph D. 400. mph E. 3600 mph
30. Acidified permanganate solution is added to a solution of hydrogen peroxide.
Determine the number of electrons involved in this reaction.
A. 10 B. 8 C. 6 D. 4 E.