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 :

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?