Practice Problems

Question: A water solution of HBr is acidic. This acidity is due to the formation of A. Br2(l) B. Br-(aq) C. H2(g) D. H+(aq) Answer: D

Question: When ammonia, NH3, dissolves in water, the concentration of OH- is increased. Such a solution is said to be A. acidic B. basic C. neutral D. reduced Answer: B

Question: In a certain solution the concentration of H+ is 7 x 10-10M. The pH is closest to A. -10 B. 7 C. 9 D. 10 Answer: C

Question: To determine the concentration of OH-(aq) in a solution of KOH, you would probably carry out a(n) A. distillation B. filtration C. titration D. oxidation-reduction Answer: C

Question: Neutralization, the simplest reaction between an acid and a base, is represented by the equation A. H2(g) + 1/2 02(g) -> H2O(l) B. H+(aq) + 1/2 0H-(aq) -> H2O(l) C. H2O(l) -> H2O(g) D. something else Answer: B

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