Answer to Question #340613 in General Chemistry for Mmwcc

Question

Vinegar is a dilute solution of acetic acid. In the titration of 10.0 m/ of vinegar, 19.5 m/ of 4.20 M sodium hydroxide solution was required to neutralize tge vinegar to a phenolphthalein end point. Calculate the molarity and the percent by mass (densitu of solution= 1.01 g/ m/) of acetic acid in the vinegar.

Answer 1

How do you find the percent by mass of acetic acid in vinegar?

Going back to moles, you can calculate the mass of acetic acid in the solution by multiplying the moles by the molar mass of the acetic acid ( 60.05gmol ). This will then be divided by the volume of the solution in mL