Question

what mass of baking soda would completely react with 3.8 g acetic acid

Answer 1

CH3COOH + NaHCO3 ==> CH3COONa + H2O + CO2
Convert CH3COOH to mols. mols = grams/molar mass.

Convert mols CH3COOH to mols NaHCO3 using the coefficients in the balanced equation.
Convert mols NaHCO3 to grams. g = mols x molar mass.

Answer 2

175