Question

How many grams of silver chloride can be produced from 100.0 g of lead II chloride? Be sure to balance the equation and show all your mathematical work. AgNO3 + PbCl2 --> AgCl + Pb(NO3)2

Answer 1

notice how the equation is not balanced (unequal #'s of NO3 and Cl on each side). we can balance this by adding a 2 in fron tof the AgCl and in front of the AgNO3

balanced equation:
2AgNO3 + PbCl2 --> 2AgCl + Pb(NO3)2

we have g of PbCl2 and we want to know how much AgCl we can make from this.

to convert 100.0 g PbCl2 to grams AgCl, the pathway is:
1. divide g of PbCl2 by the molar mass of PbCl2 to get moles
2. use the equation to go from moles PbCl2 to moles AgCl. since 1 mole PbCl2 = 2 moles AgCl from the equation, simply multiply moles PbCl2 by 2 to get moles AgCl
3. multiply moles AgCl by the molar mass of AgCl to get grams of AgCl

please let me know if anything was confusing, or if you want to check your solution