what is the [H3O+] in a solution that consists of 1.5 M NH3, and 2.5 M NH4Cl? Kb= 1.8 x 10-5?

a.1.1 x 10^-5 M

b. 3.0 x 10^-6 M

c. 3.3 x 10 ^ -9 M

d.9.3 x 10^-10 M

e.none are correct

1 Answer

  • pOH = 4.7 + log 2.5/1.5 =4.85

    pH = 9.15

    [H3=+]= 10^-9.15 = 9.2 x 10^-10 M

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