Question

Which statement/relationship is correct?

• A. pH of 0.1 M HNO3, 0.1M HCl, 0.1M H is not equal.
• B. pH = – log $\frac { 1 } { \left[ \mathrm { H } ^ { + } \right] }$
• C. At 25⁰C the pH of pure water is 7.
• D. The value of pKw at 25⁰C is 7.

Answer 1

Answer: (C)

At 25⁰C the pH of pure water is 7.

Answer 2

Factual.