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# Chap 18 practice problems answers - EXAM PRACTICE QUESTIONS...

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Questions 1-4 are for Test 3, Questions 5-17 are for the final. Chapter 18 1. Classify each of the following as a strong acid, strong base, weak acid, weak base, soluble salt or insoluble base in water. A) Sr(OH) 2 ____________________ B) AgF ____________________ C) NaClO 3 ____________________ D) Co(OH) 2 ____________________ E) H 2 CO 3 ____________________ F) HI ____________________ G) CH 3 NH 2 ____________________ Answer: A) strong base B) soluble salt C) soluble salt D) insoluble base E) weak acid F) strong acid G) weak base 2. Calculate the Ca 2+ ion concentration, the OH - ion concentration, the pOH and the pH of a 0.15 M Ca(OH) 2 solution. Answer: Ca 2+ = 0.15 M, OH - = 0.15 M, pOH = 0.52, pH = 13.48 3. Calculate the pH, pOH, [H + ] and [OH - ] of a 0.25 M HClO 4 solution. Answer: [H + ] = 0.25 M, [OH - ] = 3.98 × 10 -14 M, pOH = 13.4, pH = 0.60 4. The pH of a solution of Ba(OH) 2 is 9.40. What is the molarity of this solution of base? Answer:

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Chap 18 practice problems answers - EXAM PRACTICE QUESTIONS...

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