Calculate the pH of a solution in which

Question

a. [H3O+] = 7.2 x 10-5 M

pH = 

b. [H3O+] = 6.5 x 10-7 M

pH = 

c. [H3O+] = 8.5 x 10-6 M

pH = 

d. [H3O+] = 8.8 x 10-7 M

pH =

Answer 1

pH = - log [H3O+]

 

a) - log 7.2x10^-5 = 4.14 = pH

b) -log 6.5x10^-7 = 6.19 = pH

c) -log 8.5x10^-6 = 5.07 = pH

d) -log 8.8x10^-7 = 6.06 = pH