What is the approximate pH of a neutral salt solution?
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A.
Equal to 7
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B.
Depends on the temperature
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C.
Less than 7
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D.
More than 7
Correct Answer:
A. Equal to 7
Explanation:
The pH scale measures the acidity or alkalinity of a solution, ranging from 0 to 14. A neutral solution, such as a solution of a neutral salt formed from a strong acid and a strong base, is neither acidic nor basic. At a standard temperature of 25 degrees Celsius, the concentration of hydrogen ions equals the concentration of hydroxide ions, resulting in a pH value of exactly 7. Therefore, the approximate pH of a neutral salt solution is equal to 7.
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