An impure sample of AgNO2, weighing 0.34g was dissolved in water.
After the addition of 10ml of 0.8 mol/l HCl, 0.213g AgCl was recovered.
a) Write the chemical equation taking place.
b) Determine the mass of pure AgNO3 present in the impure sample and calculate the percentage of AgNO3 in this sample.
c) Is the acid added in an excess amount or just the exact amount needed to react completely with AgNO3
Given: Molar mass of Ag = 108g/mol
Molar mass of N = 14g/mol
Molar mass of O = 16g/mol
Molar mass of Cl = 35g/mol