When [H⁺] = 4

question 102

Multiple Choice

When [H⁺] = 4.0 *10^-9 M in water at 25°C, then ________

• A) pH = 9.40.
• B) pH = 7.00.
• C) pH = -8.40.
• D) pH = 8.40.
• E) pH = -9.40.

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