Stoichiometry Quiz - Practice MCQs with Answers

Our stoichiometry quiz consists of 15 multiple-choice questions. Each time your questions will be different because they will be coming randomly from a question bank. Test your understanding by attempting this quiz and see how much you score! Topics include limiting reagents, theoretical yield, percent yield, mole ratios, and reaction stoichiometry.

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1. If you have 1.5 moles of calcium nitrate (Ca(NO₃)₂), how many moles of nitrate ions are there?

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2. What is the volume of 4 moles of nitrogen gas at STP?

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3. What is the volume of 2 moles of any gas at STP?

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4. What volume of SO₂ at room temperature and pressure is produced when 9.7g of Zinc Sulfide (ZnS) reacts as follows: 2ZnS(s) + 3O₂(g) → 2ZnO(s) + 2SO₂(g)

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5. How many covalent bonds are present in 9g of H₂O?

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6. When one mole of each of the following is completely burnt in oxygen, which will give the largest mass of CO₂?

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7. If four moles of SO₂ are oxidized to SO₃, how many moles of oxygen molecules are required?

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8. The Avogadro's constant is the number of:

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9. In the reaction N2 + 3H2 → 2NH3, how many grams of NH3 are formed from 14 g of N2?

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10.

How many grams of H₂O are formed from 8 g of H₂?

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11.

What is the percent yield if the theoretical yield is 50 g and the actual yield is 45 g?

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12.

If 8.4 g of Mg reacts with HCl, how many liters of H₂ gas are produced at STP?

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13.

What volume of O₂ (at STP) is required to completely react with 2 moles of C₂H₆?

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14.

What does the coefficient in a balanced chemical equation represent?

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15.

What is a limiting reactant in a chemical reaction?

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