Question

1) A 0.2998 gram sample of an unknown acid requires 37.21 mL of 0.1064 M NaOH for neutralization to the phenolphthalein endpoint. The unknown acid reacts with the NaOH in a 1:1 molar ratio.

A. How many moles of NaOH were used in the titration? ____________________ moles NaOH

B. How many moles of acid were present in the unknown sample? ____________________ moles acid

C. What is the molar mass of the acid [use (MM=Grams of acid/ Moles of H⁺ ion furnished)]? ______________________ grams/mole