A pool owner adds a compound containing chlorine to the pool to disinfect it. However, too much of the compound is added. As a result, the water becomes too acidic. What could the pool owner do to reduce the acidity of the pool?
Answer
A
He could add another acid to the pool to compete with the existing acid.
B
He could add a metal salt to the pool to precipitate the acid.
C
He could add a base to the pool to neutralize the acid.
Explanation
A base neutralizes an acid, reducing the water’s acidity and raising its pH. Therefore, the pool owner could add a base to neutralize the excess acid. Adding another acid would make the water more acidic, and a metal salt is not the appropriate way to neutralize the acid.
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