Step-by-step explanation:
Silver nitrate + iron (III) chloride --> silver chloride + iron (III) nitrate
The balanced chemical equation is given as;
2FeCl3 + 3Pb(NO3)2 → 2Fe(NO3)3 + 3PbCl2
Mass of Pb(NO3)2 = 25g
How many grams of iron (III) nitrate were formed?
From the equation;
3 mol of Pb(NO3)2 produces 2 mol of Fe(NO3)3
Converting to mass using;
Mass = Number of moles * Molar mass
Pb(NO3)2;
Mass = 3 mol * 331.2 g/mol
Mass = 993.6 g
Fe(NO3)3;
Mass = 2 mol * 241.86 g/mol
Mass = 483.72 g
This means 993.6 g produces 483.72 g
We have;
993.6 g = 483.72 g
25 g = x
solving for x;
x = 25 * 483.72 / 993.6
x = 12.1709 g of iron (III) nitrate