AP CHEMISTRY FINAL EXAM REVIEW
A sample of 9.00 grams of aluminum metal is added to an excess of hydrochloric acid. The volume of hydrogen
gas produced at standard temperature and pressure is
(A) 22.4 liters (C) 7.46 liters
(B) 11.2 liters (D) 5.60 liters - Answer>> (B) 11.2 liters
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AP CHEMISTRY FINAL EXAM REVIEW
A sample of 9.00 grams of aluminum metal is added to an excess of hydrochloric acid. The volume of hydrogen
gas produced at standard temperature and pressure is
(A) 22.4 liters (C) 7.46 liters
(B) 11.2 liters (D) 5.60 liters - Answer>> (B) 11.2 liters
What is the net ionic equation for the reaction that occurs when aqueous copper(II) sulfate is added to excess 6-
molar ammonia?
(A) Cu2+ + SO42- + 2 NH4+ + 2 OH- -> (NH4)2SO4 + Cu(OH)2
(B) Cu2+ + 4 NH3 + 4 H2O -> Cu(OH)4²- + 4 NH4+
(C) Cu2+ + 2 NH3 + 2 H2O -> Cu(OH)2 + 2 NH4+
(D) Cu2+ + 4 NH3 -> Cu(NH3)4²+ - Answer>> (D) Cu²+ + 4NH3 -> Cu(NH3)4²+
HgO(s) + 4 I- H2O « HgI4^2- + 2 OH- ∆H < 0
Consider the equilibrium above. Which of the following changes will increase the concentration of HgI42- ?
(A) Increasing the concentration of OH-
(B) Adding 6 M HNO3
(C) Increasing the mass of HgO present
(D) Increasing the temperature - Answer>> (B) Adding 6 M HNO3
A 27.0-gram sample of an unknown hydrocarbon was burned in excess oxygen to form 88.0 grams of carbon dioxide and 27.0 grams of water. What is a possible molecular formula of the hydrocarbon?
(A) CH4 (C) C4H3 (B) C2H2 (D) C4H6 - Answer>> (D) C4H6
A student wishes to prepare 2.00 liters of 0.100-molar KIO3 (molecular weight 214). The proper procedure is to weigh out
(A) 42.8 grams of KIO3 and add 2.00 kilograms of H2O
(B) 42.8 grams of KIO3 and add H2O until the final homogeneous solution has a volume of 2.00 liters
(C) 21.4 grams of KIO3 and add H2O until the final homogeneous solution has a volume of 2.00 liters
(D) 42.8 grams of KIO3 and add 2.00 liters of H2O - Answer>> (B) 42.8 grams of KlO3 and add H2O until the final homogeneous solution has a volume of 2.00 liters
Which of the following species CANNOT function as an oxidizing agent?
(A) Cr2O7
2- (B) NO3- (C) I- (D) MnO4- - Answer>> (C) I-
When 70. milliliter of 3.0-molar Na2CO3 is added to 30. milliliters of 1.0-molar NaHCO3 the resulting
concentration of Na+ is
(A) 2.0 M (C) 4.0 M
(B) 2.4 M (D) 4.5 M - Answer>> (D) 4.5 M
Pi (π) bonding occurs in each of the following species EXCEPT
(A) CO2 (B) CN- (C) CH4 (D) C2H4 - Answer>> (c) CH4
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