Question detail

What is the mass of solute in grams when 2 dm³ of a solution has a concentration of 3 g/dm³?

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

6 g

The mass of solute can be calculated using the formula: mass = concentration × volume. Here, mass = 3 g/dm³ × 2 dm³ = 6 g.

Confusing Concentration Units

Students often confuse grams per cubic decimetre (g/dm³) with moles per cubic decimetre (mol/dm³) when calculating concentrations.

Always check the units required for the concentration calculation and ensure you are using mass (g) and volume (dm³) for g/dm³.

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