Question detail

What is the first step in calculating the volume of a gas from its mass?

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

At a glance

MCQ

Type

practice

Style

Topic

Use of amount of substance in relation to volumes of gases (chemistry only) (HT only)

Question

Convert the mass to moles.

The first step in calculating the volume of a gas from its mass is to convert the mass to moles using the relative formula mass.

Changing the Subject of Equations

Students often forget to isolate the variable correctly when changing the subject of gas-volume equations, leading to incorrect formulas.

To fix this, practice rearranging equations step-by-step, ensuring each operation is applied to both sides of the equation to maintain balance.

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