Question detail
What is the concentration of a solution if 10 g of solute is dissolved in 2 dm³ of solution?
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
- A. 5 g/dm³
- B. 20 g/dm³
- C. 2 g/dm³
- D. 10 g/dm³
Answer
5 g/dm³
Explanation
Concentration is calculated using the formula concentration = mass / volume. Here, 10 g / 2 dm³ = 5 g/dm³.
Common mistake
Common Mistake in Concentration Calculations
Students often confuse the units of mass and volume when calculating concentration, leading to incorrect answers.
Always ensure that mass is in grams and volume is in cubic decimeters (dm³) before performing the calculation.
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