Answer to Question #109369 in General Chemistry for mya 9

Question

Determine the [H+] , pH, and pOH of a solution with an [OH−] of 1.9×10−13M at 25 °C.

Determine the [H+] , [OH−] , and pOH of a solution with a pH of 4.77 at 25 °C.

Determine the [H+] , [OH−] , and pH of a solution with a pOH of 11.38 at 25 °C.

Answer 1

1. pOH=-lg[OH-]= 12.72

pH=14-pOH=1.28

[H+]=10^-pH=0.05248

2.pOH=9.23

[H+]=1.698*10^-5

[OH-]=5.88*10^-10

3.pH=2.62

[H+]=0.0024=2.4*10^-3

[OH-]=4.17*10^-12