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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