A 10.0-mL sample of vinegar, which is an aqueous solution of acetic acid, CH3COOH, requires 16.5 XML of a 0.500M NaOH solution to reach the endpoint in a titration (where the moles of acid are equal to the moles of base). What is the molarity of the acetic acid solution

Question

A 10.0-mL sample of vinegar, which is an aqueous solution of acetic acid, CH3COOH, requires 16.5 XML of a 0.500M NaOH solution to reach the endpoint in a titration (where the moles of acid are equal to the moles of base).  What is the molarity of the acetic acid solution

DrBob222 · Answer

How many moles NaOH do you have? That is M x L = ??
How many moles acetic acid do you have? That will be the same thing; the problem tells you.
Concn acetic acid = moles/L soln. The problem gives you 10 mL which is 0.010 L so M = ??moles/0.010L = ??