a. A student massed out 0.175 g of an unknown diprotic acid on an analytical balance, and then dissolved it in 100mL of deionized water. The acid was then titrated with 0.111 M NaOH solution. The second equivalence point showed the sharpest change in pH, and so it was used to determine the molar mass of the unknown acid. The volume of NaOH needed to reach the second equivalence point was 27.77 mL b. If the volume required to reach the second equivalence point is 38.18 mL, what is the volume required to reach the first equivalence point? Report your answer to 2 digits behind the decimal point, and do not include units in your answer. c. if the volume to reach the second equivalence point in a titration is 24.53 mL, What is the volume to reach the midpoint between the first equivalence point and the second equivalence point? Report your answer to 2 digits behind the decimal point and do not include units
a. A student massed out 0.175 g of an unknown diprotic acid on an analytical balance, and then dissolved it in 100mL of deionized water. The acid was then titrated with 0.111 M NaOH solution. The second equivalence point showed the sharpest change in pH, and so it was used to determine the molar mass of the unknown acid. The volume of NaOH needed to reach the second equivalence point was 27.77 mL
b. If the volume required to reach the second equivalence point is 38.18 mL, what is the volume required to reach the first equivalence point?
Report your answer to 2 digits behind the decimal point, and do not include units in your answer.
c. if the volume to reach the second equivalence point in a titration is 24.53 mL, What is the volume to reach the midpoint between the first equivalence point and the second equivalence point?
Report your answer to 2 digits behind the decimal point and do not include units
d. If pKa1 = 3.18 what is the value for Ka1?
Report your answer in normal (not scientific notation)
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