To titrate the acetic acid in 10.0 mL of vinegar sample, 25.5mL of 0.5M sodium hydroxide solution is needed. What is the concentration of acetic acid in the vinegar?

1 answer

mols NaOH = M x L = ?
mols acetic acid = mols NaOH since the reaction is 1 mol acetic acid = 1 mol NaOH.
Then M acetic acid = mols acetic acid/L acetic acid.