A 3.750-g sample of a solid, weak, monoprotic acid is used to make100.0 mL of solution. 25.0 mL of this solution was titrated with0.08989-M NaOH. The pH after the addition of 16.67 mL of base was6.84, and the equivalence point was reached with the addition of47.64 mL of base.

a) How many millimoles of acid are in the original solid sample?Hint: Don't forget the dilution.

mmolacid
b)What is the molar mass of the acid?
g/mol
c)What is the pK_aofthe acid?
pK_a=

Question

A 3.750-g sample of a solid, weak, monoprotic acid is used to make100.0 mL of solution. 25.0 mL of this solution was titrated with0.08989-M NaOH. The pH after the addition of 16.67 mL of base was6.84, and the equivalence point was reached with the addition of47.64 mL of base.

a) How many millimoles of acid are in the original solid sample?Hint: Don't forget the dilution.

mmolacid

b)What is the molar mass of the acid?

g/mol

c)What is the pK_aofthe acid?

pK_a=

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