An insecticide is known to contain C, H, Cl. Reactions were carried out on a 1.000 gram sample of the compound that converted all of its chlorine ion dissolved in water. The aqueous solution was subsequently treated with an excess of AgNO3 solution and the AgCl precipitated was collected and has a mass of 2.022 grams of AgCl.
a) how many moles of Cl (Cl-) were in the AgCl sample?
b) how many grams of Cl (Cl-) were in the AgCl sample?
C) what is the percentage by mass of Cl in the original (1.000 g) insecticide sample?
Hint begin with a balanced equation of the precipitation reaction