Multiple Choice
A 0.510 g sample of strontium chloride reacts with sodium carbonate to give 0.455 g of strontium carbonate. What is the percent yield of strontium carbonate in this reaction?
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3. Chemical Reactions
Percent Yield
Multiple Choice
Which statement best describes the difference between actual yield and theoretical yield in a chemical reaction?
A
Actual yield is always greater than theoretical yield because of measurement errors.
B
Actual yield is the amount of product obtained from an experiment, while theoretical yield is the maximum amount of product predicted by stoichiometry.
C
Actual yield and theoretical yield are always equal in a perfectly controlled reaction.
D
Theoretical yield is the amount of product obtained from an experiment, while actual yield is calculated using stoichiometry.
Verified step by step guidance1
Step 1: Understand the definitions of theoretical yield and actual yield in a chemical reaction. Theoretical yield is the maximum amount of product that can be formed from the given amounts of reactants, calculated using stoichiometry based on the balanced chemical equation.
Step 2: Recognize that actual yield is the amount of product actually obtained from performing the experiment or reaction in the laboratory.
Step 3: Note that actual yield is often less than theoretical yield due to factors such as incomplete reactions, side reactions, losses during product recovery, or measurement errors.
Step 4: Compare the two yields: theoretical yield is a calculated maximum, while actual yield is the measured experimental result.
Step 5: Conclude that the best description is that actual yield is the experimentally obtained amount of product, whereas theoretical yield is the maximum predicted amount based on stoichiometric calculations.
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