Calculate the [H3O+] of each aqueous solution with the following [OH−]:
Part A
NaOH, 1.0×10−2 M .
Express your answer using two significant figures
Part B
milk of magnesia, 1.4×10−5 M .
Express your answer using two significant figures.
Part C
aspirin, 1.6×10−11 M .
Express your answer using two significant figures.
Part D
seawater, 2.5×10−6 M .
Express your answer using two significant figures.