January 27: Mass to Mass Conversions (Angelo)

Mass to Mass Conversions:
- mass to mass problems involved one additional conversion
- this chart is a visual example of how to perform mass to mass conversions
GRAMS OF A -------> MOLES OF A -------> MOLES OF B -------> GRAMS OF B


EXAMPLES:


1. Lead (IV) Nitrate reacts with 5.0 grams of Potassium Iodide. How many grams of Lead (IV) nitrate are required for a complete reaction?

Create your balanced equation: Pb(NO3)4 + 4KI -----> 4KNO3 + PbI4
Create your equation: 5.0 grams (KI) * (1 mol / 166 g. (KI)) * (1 mol (Pb(NO3)4) / 4 mols (KI)) * (455.2 g. (Pb(NO3)4) / 1 mol) = ?
Calculate: 5.0 grams (KI) * (1 mol / 166 g. (KI)) * (1 mol (Pb(NO3)4) / 4 mols (KI)) * (455.2 g. (Pb(NO3)4) / 1 mol) = 3.4 grams (Pb(NO3)4)