Ch. 19 Chemistry Exam Review
Ch. 19 Chemistry Exam Review
Ch. 19 Chemistry Exam Review
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14. Which of the following pairs consists of a strong acid and a weak base?<br />
a. sulfuric acid, sodium hydroxide b. acetic acid, ammonia c. acetic acid, sodium hydroxide d. nitric acid,<br />
ammonia<br />
15. How is Ka calculated? What is the significance of Ka?<br />
16. The K of carbonic acid is 4.3 10 .<br />
H CO H + HCO<br />
This means that H CO is a ____.<br />
a. good hydrogen-ion acceptor b. poor hydrogen-ion acceptor c. good hydrogen-ion donor d. poor<br />
hydrogen-ion donor<br />
17. How can a base be strong, but never concentrated?<br />
18. How many moles of H2SO4 are required to neutralize 2.4 mol NaOH?<br />
<strong>19</strong>. Calculate the molarity of an HCl solution if 45.0 mL of the solution is neutralized by 15.5 mL of 0.600 M<br />
NaOH.<br />
20. What is a buffer made from?<br />
21. What is the hydroxide ion concentration in a solution that has a pH of 6.52?<br />
22. What is the molarity of an H2SO4 solution if 55.0 mL of the solution reacts completely with 0.365 g CaCO3?<br />
23. What is the pH of a solution that has a hydroxide ion concentration of 2.5 x 10 -6 ?<br />
24. What will be produced when calcium hydroxide reacts with hydrochloric acid?<br />
25. The pH of a 0.500 M HNO2 solution is 3.25. What is the Ka of this acid?
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