If 38.55 mL of HCl is required to titrate 2.150 g of Na2CO3 according to the following equation, what is the molarity of the HCl solution? Na2CO3 + 2HCl (aq)→ 2NaCl (aq) + CO2 (g) + H20 (1)

The molarity of the HCl solution : 1.052 M

Given

Volume of HCl = 38.55 ml

mass of Na₂CO₃ (MW=106 g/mol)=2.15 g

Reaction

Na₂CO₃(aq) + 2HCl (aq)→ 2NaCl (aq) + CO₂ (g) + H₂0 (l)

Required

The molarity of the HCl solution

Solution

mol Na₂CO₃ :

From the equation, mol ratio Na₂CO₃ : HCl = 1 : 2, so mol HCl :

The molarity :

narendra modi is currently the pm of india

explanation: