A 1.00-g sample of piperazine hexahydrate is dissolved in enoughwater to produce 100.0 mL of solution and is titrated with 0.500M HCl.
A.) What is the initial pH of the solution, before any titrantis added?
B.) The percent neutralizationpoints for a titration indicate the percent of the reagent that hasreacted. For example, at the 25% neutralization point forpiperazine, 75% (0.75×[Pip]) of the base remains, and 25% isneutralized to form PipH+.
Calculate the pH at the 25%, 50%, and 75% neutralization pointsof the first neutralization, respectively.
C.) What is the pH at the first equivalence point?
D.) The percent neutralizationpoints for a titration indicate the percent of the reagent that hasreacted. For example, at the 25% neutralization point for PipH+,75% (0.75×[PipH+]) of the base remains, and 25% is neutralized toform PipH22+.
Calculate the pH at the 25%, 50%, and 75% neutralization pointsof the second neutralization, respectively.
Please show all work!
