Question

In: Chemistry

Calculate the pH of each solution. A. [H3O+] = 7.7×10−8 M B. [H3O+] = 4.0×10−7 M...

Calculate the pH of each solution.

A. [H3O+] = 7.7×10−8 M

B. [H3O+] = 4.0×10−7 M

C. [H3O+] = 3.2×10−6 M

D. [H3O+] = 4.4×10−4 M

Solutions

Expert Solution

A. [H3O+] = 7.7×10−8 M

    PH   = -log[H3O+]

             = -log7.7*10^-8

            = 7.1135

B. [H3O+] = 4.0×10−7 M

   PH   = -log[H3O+]

             = -log4*10^-7

             = 6.3979

C. [H3O+] = 3.2×10−6 M

    PH   = -log[H3O+]

             = -log3.2*10^-6

              = 5.4948

D. [H3O+] = 4.4×10−4 M

PH   = -log[H3O+]

             = -log4.4*10^-4

              = 3.3565


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