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What is the pH of 0.486 M dimethylammonium iodide, (CH3)2NH2I? Enter your answer with two decimal...

What is the pH of 0.486 M dimethylammonium iodide, (CH3)2NH2I? Enter your answer with two decimal places.
The Kb of (CH3)2NH is 5.9 x 10-4.

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