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Q: A sample of L-valine hydrochloride (i.e. the totally protonated form of L-Valine) is dissolved into water (250 mL of 0.1M). To this solution is added 40 mL of 0.5 M NaOH. What is the final pH of the solution? (Assume L-valine has the following pKa values: 2.29 and 9.74)
OK, so I know I have to use the hendersen hasselboch equation (pH=pKa + log ([A-]/[HA]) but I don't know how to to get either [A-] or [HA]. PLease help me on this one.
The ANSWER is: 2.89
OK, so I know I have to use the hendersen hasselboch equation (pH=pKa + log ([A-]/[HA]) but I don't know how to to get either [A-] or [HA]. PLease help me on this one.
The ANSWER is: 2.89