Answer to Question #318447 in General Chemistry for wendy

General Chemistry

Question #318447

Determine the pH

pH of each of the following solutions.

Part A

4.0×10⁻² M

M HI

Expert's answer

After dissolution

HI_(aq) + H₂O_(l) = H₃O⁺_(aq) + I^-_(aq)

0 M 4.0×10⁻² M 4.0×10⁻² M

pH = -log[H₃O⁺] = -log[4.0×10⁻²] = -1.40

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