Jenny asks…Finding mass of the AgCl precipitate?When silver nitrate is added to an aqueous solution of magnesium chloride, a precipitation reaction occurs that produces silver chloride and magnesium nitrate. When enough AgNO3 is added so that 24.5 MgCl2 react, what mass of the AgCl precipitate should form?Nancy answers:I presume you mean 24.5g MgCl2 not 24.5kg MgCl2?
Mass must have a unit.
As always, start with balanced equation
MgCl2 + 2AgNO3 ---> 2AgCl + Mg(NO3)2
This tells you