Question detail

If a solution has a concentration of 4.0 mol/dm3 and you have 0.75 dm3 of it, how many moles of solute are present?

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

At a glance

MCQ

Type

practice

Style

Topic

Using concentrations of solutions in mol/dm3 (chemistry only) (HT only)

Question

3.0 mol

The amount in moles can be calculated using the formula: moles = concentration x volume. Here, moles = 4.0 mol/dm3 x 0.75 dm3 = 3.0 mol.

Common Mistake in Moles Calculation

Students often forget to convert the volume from cm3 to dm3 when calculating moles from concentration.

Always convert the volume to dm3 by dividing cm3 value by 1000 before using it in the calculation.

Flashcard 1 of 5

Press Space to flip, arrows to move