Calculate the concentration of OH- ion in a .15 M solution of NH3. The base dissociation constant for ammonia is 1.8x 10^-5 .
NH3+H2O = NH4+ + OH-
equilibruim concentratio of NH3 is 0.15 - x.
NH4+ and OH- concentrations are equal to x.
Kb = [NH4+][OH - ]/[NH3] = x^2/0.15
x = sqrt(1.8x 10^-5 * 0.15) = 0.0016M
answer is [OH - ] = 0.0016M
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?