Question detail

What is the mass of solute in grams when 750 cm³ of a solution has a concentration of 8 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

Convert 750 cm³ to dm³ (750 cm³ = 0.75 dm³) and use the formula: mass = concentration × volume. Thus, mass = 8 g/dm³ × 0.75 dm³ = 6 g.

Common Mistake in Mass Calculation

Students often forget to convert the volume of the solution from cm³ to dm³ when calculating the mass of solute.

Always convert cm³ to dm³ by dividing by 1000 before using the concentration formula.

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