Morphine is a weak base. a 0.150 m solution of morphine has a ph of 10.5. what is the kb for morphine?

pH is the degree of acidity of a solution that depends on the concentration of H⁺ ion. The greater the value the more acidic the solution and the smaller the pH.

So that the two quantities between pH and [H⁺] are inversely proportional because they are associated with negative values.

A solution whose value is different by n has a difference in the concentration of H⁺ ion of 10ⁿ.

So we use a weak base formula to find the Kb

M = weak base concentration

Morphine is a weak base with concentration 0.150 M

pH = 10.5

then

pOH = 14 - 10.5

pOH = 3.5

We input this to weak base formula :

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Keywords : weak base, morphine, Kb, pH,pOH

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