For Gas volumes and amount of substance, which unit conversion answer best supports this Unit 4.3 objective: (chemistry only) (HT only) Substitute numerical values into equations using appropriate units. (MS 3c)?

The correct option is 3 moles. The calculated answer is 3 mol.

The correct option is 3 moles. This uses Moles From Mass because the objective is about (chemistry only) (HT only) Substitute numerical values into equations using appropriate units. (MS 3c). This unit conversion variant asks students to separate chemistry only from similar Unit 4.3 calculation steps. The reasoning belongs to Gas volumes and amount of substance within Use of amount of substance in relation to volumes of gases (chemistry only) (HT 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 chemistry 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.