Calculate the volume where you expect the equivalence point to be for the titration between sodium bicarbonate and hydrochloric acid using the following data.

Question

Acid-Base Titration

1. Calculate the volume where you expect the equivalence point to be for the titration between

sodium bicarbonate and hydrochloric acid using the following data.

Mass of NaHCO3: 0.3053 g

Concentration of HCl: 0.1000 M

Answer 1

Write a correctly balanced equation for the titration:

NaHCO₃ + HCl ==> NaCl + CO₂ + H₂O ... balanced equation

Equivalence point is when moles NaHCO3 and moles HCl are equal (1:1 mol ratio in balanced equation)

mols NaHCO3 = 0.3053 g NaHCO3 x 1mol NaHCO3 / 84.01 g = 0.003634 mols

mols HCl required for equivalence = 0.003634 mols

volume of 0.1000 M HCl needed = 0.003634 mols x 1 L / 0.1000 mol = 0.03634 L = 36.34 mls