Stoichiometric Calculations Worksheet
Grade 11 Chemistry worksheet focusing on stoichiometric calculations, mole ratios, limiting reactants, and percentage yield.
Includes
Standards
Topics
Stoichiometric Calculations
Name:
Date:
Score:
Read each question carefully and show all your work for calculations. Use the provided space for your answers.
1. Stoichiometry is the study of the quantitative relationships between and in a chemical reaction.
2. The is the reactant that is completely consumed in a chemical reaction and limits the amount of product formed.
3. The actual yield is always than or equal to the theoretical yield.
1. What is the mole ratio of H₂ to O₂ in the following balanced equation: 2H₂ + O₂ → 2H₂O?
1:1
2:1
1:2
2:2
2. If 10.0 grams of H₂ react completely, how many grams of H₂O will be produced? (Molar mass of H₂ = 2.02 g/mol, H₂O = 18.02 g/mol)
44.6 g
89.2 g
10.0 g
20.0 g
1. Consider the reaction: N₂(g) + 3H₂(g) → 2NH₃(g). If you start with 28.0 g of N₂ and 12.0 g of H₂, determine the limiting reactant.
2. In a reaction, the theoretical yield of a product is 50.0 grams, but only 45.0 grams are actually collected. Calculate the percentage yield.
1. The coefficients in a balanced chemical equation represent the mole ratios of reactants and products.
True
False
2. A percentage yield greater than 100% is impossible.
True
False