Question detail

For Moles (HT only), which option best supports this Unit 4.3 objective: (HT only) State that chemical amounts are measured in moles?

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

Use of amount of substance in relation to masses of pure substances

Question

A. 29 g
B. 58 g
C. 0.5 g
D. 0.25 g

Answer

The answer is 29 g.

Explanation

The correct option is 29 g. This uses Moles From Mass because the objective is about (HT only) State that chemical amounts are measured in moles. The reasoning belongs to Moles (HT only) within Use of amount of substance in relation to masses of pure substances, 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 moles with mass

Students often confuse the concept of moles with mass, thinking that mass is the same as the amount of substance.

Remember that moles measure the amount of substance, while mass is measured in grams. Use the relationship between mass and moles to clarify this distinction.

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