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In: Chemistry

A. Calculate [H3O+] in the following aqueous solution at 25 ?C: [OH?]= 1.6×10?9 M . Express...

A.

Calculate [H3O+] in the following aqueous solution at 25 ?C: [OH?]= 1.6×10?9 M .

Express your answer using two significant figures.

B.

Calculate [H3O+] in the following aqueous solution at 25 ?C: [OH?]= 3.0×10?2 M .

Express your answer using two significant figures.

C.

Calculate [H3O+] in the following aqueous solution at 25 ?C: [OH?]= 7.0×10?12 M .

Express your answer using two significant figures.

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