9.1 Practice Problems A
Name________________________________
Mass-Mass
Period ________ Date __________________
Write the balanced equation for each reaction. Solve for the answer. Show all your work.
1. Lead reacts with hydrochloric acid in a single replacement reaction. How many moles of hydrochloric
acid are needed to completely react with 0.36 mol of lead? Assume that the lead forms a +2 cation.
2. Determine the mass of lithium hydroxide produced when 0.38 g of lithium nitride reacts with water
according to the following unbalanced equation:
Li3N +
H2O →
NH3 +
LiOH
3. What mass of sodium chloride is produced when chlorine gas reacts with 0.29 g of sodium iodide?
(HINT: This is a single replacement reaction)
4. Determine the mass of carbon dioxide produced when 0.85 g of butane (C4H10) burns in a lighter.
1) .72 mol HCl 2) .79 g LiOH 3) 0.11 g NaCl 4) 2.6 g CO2
5. How many moles of sodium bromide will be produced when 0.69 mol of bromine gas reacts with
sodium iodide in a single replacement reaction?
6. Determine the mass of antimony produced when 0.46 g of antimony (III) oxide reacts with carbon
according to the following equation:
antimony (III) oxide +
carbon
→
antimony
+
carbon monoxide
7. Phosphorus will react with bromine to produce phosphorus tribromide in a synthesis reaction. How
many grams of phosphorus tribromide will be produced if 0.78 mol of bromine is reacted?
8. What mass of hydrogen peroxide (H2O2) must decompose to produce 0.77 g of water? (HINT: it also
produces a gas that ignites a burning splint.)
5) 1.4 mol NaBr 6) .38 g Sb 7) 140 g PBr3 8) 1.5 g H2O2