A total of 31.3 ml of 0.15 N NaOH was required to reach a phenolphthalein endpoint in titrating 6.00 g of vinegar. Calculate the number of equivalents of acetic acid in vinegar.

Answer 1

mL x N = # millieqivalents
Divide by 1000 to convert to eq.
You don't need the 6.00 g vinegar unless somewhere down the line you need grams acetic acid in the vinegar.