Question detail

For Percentage yield, which answer check answer best supports this Unit 4.3 objective: (chemistry only) (HT only) Calculate theoretical mass of product from a given mass of reactant and a balanced equation?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Yield and atom economy of chemical reactions (chemistry only)

Question

A. 25%
B. Wrong answer check: confuses HT only with a nearby Unit 4.3 idea
C. Wrong unit check: uses the wrong unit for Percentage yield
D. Wrong calculation link: does not support (chemistry only) (HT only) Calculate theoretical mass of product from a given mass of reactant and a balanced equation

Answer

The correct option is 25%. The calculated answer is 25 %.

Explanation

The correct option is 25%. This uses Percentage Yield because the objective is about (chemistry only) (HT only) Calculate theoretical mass of product from a given mass of reactant and a balanced equation. This answer check variant asks students to separate HT only from similar Unit 4.3 calculation steps. The reasoning belongs to Percentage yield within Yield and atom economy of chemical reactions (chemistry only), so it should not be confused with nearby quantitative ideas such as mass, moles, concentration, yield, atom economy, or gas volume unless those are named in the objective. Use the focus term HT only to keep the answer aligned with AQA GCSE Chemistry 8462 Unit 4.3. The other options are weaker because they either use the wrong formula, the wrong unit, a vague relationship, or the wrong quantitative context.

Common mistake

Confusing Theoretical and Actual Yield

Students often confuse theoretical yield with actual yield when calculating percentage yield.

Always remember that theoretical yield is the maximum amount of product expected from a reaction, while actual yield is what is actually obtained. Use the correct values in the percentage yield formula. Keep the correction anchored to Percentage yield; check formula, substitution, calculation, final answer, and unit where relevant.

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For Percentage yield, which option best supports this Unit 4.3 objective: (chemistry only) (HT only) Calculate theoretical mass of product from a given mass of reactant and a balanced equation?