Acids, Bases & Salt Preparations Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. Which of these salts is insoluble in water?
- A. Sodium chloride
- B. Potassium sulfate
- C. Silver chloride
- D. Ammonium carbonate
2. What is a base, in terms of proton transfer?
- A. A proton donor
- B. A proton acceptor
- C. An electron donor only
- D. A substance that always contains oxygen
3. What are the products of a metal carbonate reacting with an acid?
- A. Salt and hydrogen only
- B. Salt and water only
- C. Salt, water and carbon dioxide
- D. Salt and oxygen
4. A student wants to prepare a pure, dry sample of lead sulfate, which is insoluble. Which method should they use?
- A. React lead with dilute sulfuric acid, then filter
- B. Titrate lead oxide with sulfuric acid
- C. Mix a soluble lead salt solution with a soluble sulfate solution to precipitate lead sulfate, then filter, wash and dry
- D. Evaporate a solution of lead sulfate to dryness
5. Why can't excess sodium hydroxide simply be added to hydrochloric acid and then filtered to prepare sodium chloride, unlike the method used for copper oxide and sulfuric acid?
- A. Sodium hydroxide is insoluble
- B. Both sodium hydroxide and sodium chloride are soluble, so there is no insoluble excess to filter off
- C. Sodium chloride is insoluble
- D. Hydrochloric acid does not react with sodium hydroxide