Start with 3 free Unit 09 practice problems. When you want more chances to steady mole ratios, limiting reactants, theoretical yield, and percent yield, premium unlocks Quick Sets of 3, Standard Sets of 9, and Extended Sets of 18 from this 81-problem bank.
3 Free Sample Problems
These 3 problems are a strong first check on whether your stoichiometry road map feels organized enough to follow without getting lost halfway through.
#4Limiting Reactant
2 Mg + O₂ → 2 MgO. You have 12.0 g of Mg and 16.0 g of O₂. How many grams of MgO form? (MM: Mg = 24.31, O₂ = 32.00, MgO = 40.30 g/mol)
#5Stoichiometry Road Map
In a stoichiometry problem, you are given grams of a reactant and asked for grams of a product. What is the correct order of conversions?
#6Percent Yield
N₂ + 3H₂ → 2NH₃. Starting with 10.0 g N₂ and 8.00 g H₂, the actual yield of NH₃ is 9.50 g. What is the percent yield? (MM: N₂ = 28.01, H₂ = 2.016, NH₃ = 17.03 g/mol)
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