chemistry

I have no clue, please help and explain! =)

Find the pH of a 0.150 M solution of a weak monoprotic acid having Ka=1.2×10−5.

Find the percent dissociation of this solution.

Find the pH of a 0.150 M solution of a weak monoprotic acid having Ka=1.4×10−3.

Find the percent dissociation of this solution.

Find the pH of a 0.150 solution of a weak monoprotic acid having Ka= 0.11.

Find the percent dissociation of this solution.

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  1. I need help =(

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  2. and thank you!

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