Problem: Morphine is a weak base. A 0.150 M  solution of morphine has a pH of 10.5.What is Kb for morphine?

FREE Expert Solution

Morphine + H2O → OH- + HMorphine+

(1) Construct an ICE chart

Kb = [products][reactants]Kb = [OH-][HMorphine+][Morphine]=x20.15 -x

(2) Calculate OH-

pOH = 14 - pH

pOH = 14 - 10.5 = 3.5

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Problem Details

Morphine is a weak base. A 0.150 M  solution of morphine has a pH of 10.5.

What is Kb for morphine?

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