Name: Answer Key Period: ______Date: ______Chem B Problems 1 – 6 for HW, the rest for extra practice/review

WS 4.6: Mole Ratio Problems

Directions: Solve the Following Problems. Show all work on a separate sheet of paper and box your final answer.

1) How many moles of Nitrogen Dioxide will be made from the reaction of 5.5 moles of Dinitrogen Tetraoxide? N2O4(g) → 2 NO2(g) 11 mol NO2 2) How many moles of NH3 will be produced when 13 moles of H2 reacts? N2(g) + 3 H2(g) → 2 NH3(g) 8.7 mol NH3 3) How many moles of NH3 will be produced when 7.0 moles of N2 reacts? N2(g) + 3 H2(g) → 2 NH3(g) 14 mol NH3 4) How many moles of Technetium(VII) Oxide will can be produced from 3.8 moles of Technetium? 4 Tc + 7 O2 → 2 Tc2O7 1.9 mol Tc2O7 5) Given the reaction below, how many moles of Vandium(II) Chloride will form when 3.22 moles of Hydrogen gas reacts? 2 VCl3 + H2 → 2 VCl2 + 2 HCl 6.44 mol VCl2 6) If 12 moles C8H18 burns in excess oxygen, how many moles of Carbon Dioxide will enter the atmosphere and further contribute to global warming? 2 C8H18(l) + 25 O2(g) → 16 CO2(g) + 18 H2O(g) 96 mol CO2 7) If 45.0 moles of CH4 reacts, how many moles of water will be produce? CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g) 90.0 mol H2O 8) How many moles of lead can be extracted if 50 moles of Carbon are used? 2 PbO + C → 2 Pb + CO2 100 mol Pb 9) For the reaction below, determine how many moles of S2Cl2 formed when 7.80 moles of Sulfur reacts? S8 + 4 Cl2 → 4 S2Cl2 31.2 mol S2Cl2 10) How many moles of Bismuth(III) Sulfate “Bi2(SO4)3” will can be produced if 25.0 moles of H2SO4 reacts with excess Bismuth given the reaction below? 6 H2SO4 + 2 Bi → 6 H2O + Bi2(SO4)3 + 3 SO2 4.16 mol Bi2(SO4)3 11) Given the reaction below, how many moles of Bismuth(II) Chloride will form when 1.55 moles of HCl reacts? 4 Bi + 3 O2 + 12 HCl → 4 BiCl3 + 6 H2O .516 mol BiCl3 12) If .275 moles C5H12 burns in excess oxygen, how many moles of Water can form? C5H12(l) + 8 O2(g) → 5 CO2(g) + 6 H2O(g) 1.65 mol H2O 13) How many moles of Xenon Trioxide will be produced when 7.9 moles of Xenon Hexafluoride reacts? 3 XeF6 + 6 H2O → 2 XeO3 + Xe + 12 HF 5.3 mol XeO3