To precipitate all the silver contained in 100 ml of silver nitrate solution, 50 ml of 0.2N hydrochloric acid solution

To precipitate all the silver contained in 100 ml of silver nitrate solution, 50 ml of 0.2N hydrochloric acid solution were required. What was the normal concentration of the silver nitrate solution? What is the mass of the resulting residue?

Let’s write the reaction equation:
AgNO3 + HCl = AgCl + HNO3
V1 * C1 = V2 * C2
C1 = 50 * 0.2 / 100 = 0.1H
n (AgCl) = 0.1 * 0.1 = 0.01 mol
m = n * M
m (AgCl) = 0.01 * 143.5 = 1.435 g