Question- the ka of a monoprotic weak acid is 248x10-3 what, Ask an Expert

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Question- The Ka of a monoprotic weak acid is 2.48x10^-3. What is the percent ionization of a 0.199 M solution of this acid?

I swear I've been working it out properly and I am getting 11.2% each time, however that is not the right answer. Please help! Thank you!

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Category:- Chemistry
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