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In: Chemistry

9.) Which of the following titrations results in an acidic solution at the equivalent point? a.)...

9.) Which of the following titrations results in an acidic solution at the equivalent point?

a.) acetic acid titrated w/ NaOH
b.) hydrochloric acid titrated w/ KOH c.) C5H5N titrated w/ HBr
d.) NaOH titrated w/ nitric acid

10.) Which combination of solutions is the BEST choice for making a buffer solution?

a.) equal volumes of 1 M ammonia and 0.001 M ammonium chloride. b.) equal volumes of 0.5 M HCl and 0.5 M NaOH.
c.) equal volumes of 0.5 M HCl and 0.5 M NaCl.
d.) equal volumes of 2 M ammonia and 1 M HCl.

e.) equal volumes of 2 M ammonium chloride and 1 M HCl.

11.) Glycolic acid which is a monoprotic acid and a constituent in sugar cane has a pKa of 3.90. A 25.0 mL solution of glycolic acid is titrated to the equivalence point with 35.8 mL of 0.020 M NaOH (aq). What is the pH of the resulting solution at the equivalence point?

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