Praxis II General Science

Category - Major Ideas

Alex needs to use some strong acid to clean up a strong base spill that occurred in the lab. Which of the following acids is not a strong acid and should not be used?
  1. Nitric acid
  2. Hydrochloric acid
  3. Sulfuric acid
  4. Acetic acid
  5. Chloric acid
Explanation
Answer: D - Acetic acid is a weak to moderately strong acid, and will not clean up a strong base spill unless a large volume of it is used. The other acids are all very strong acids that dissociate completely. Chloric acid may be a little unfamiliar, but it has the formula HClO3, and is a very strong acid.
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