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What is the original molarity of a solution of a weak acid whose Ka=3.5 x 10^-5 and whose pH is 5.28 at 25 degrees C?
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This is the same type problem as the two NH3 problems above; however, this is an acidic solution and you are dealing with Ka.
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References
Chapter 17: EOC Assume you dissolve 0.178 g of the weak acid benzoic acid, , in enough water to make mL of solution
A 0.0500 L solution of a 0.1000 M solution of a weak acid, HY. Ka = 1.80 x 10^-8. The solution is titrated with 0.1000 M NaOH.
