In: Chemistry
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.