Question detail

What is the mass of 3 moles of carbon dioxide (CO2)?

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 masses of pure substances

Question

132 g

The relative formula mass of CO2 is 44 g/mol. Therefore, the mass of 3 moles is calculated as 3 x 44 g/mol = 132 g.

Changing the Subject of Equations

Students often forget to correctly rearrange the equation when changing the subject, leading to incorrect calculations.

Practice rearranging equations step-by-step, ensuring to isolate the variable of interest while maintaining the equality.

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