Problem- enough of a monoprotic acid is dissolved in water, Ask an Expert

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Problem- Enough of a monoprotic acid is dissolved in water to produce a 0.0190M solution. The pH of the resulting solution is 6.17. Calculate the Ka for the acid.

I've tried the following answers

2.35x10^-11

2.40x10^-11

2.41x10^-11

And was told I'm incorrect. So I'm supposing that maybe there was rounding error or a tiny step that I not recalled when trying to work the problem.

Solve the above problem and provide steps with explanation

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Category:- Chemistry
Reference No.:- M91245917

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