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CIE · IGCSE · Chemistry

Concentration of solutions and solution calculations
Practice Questions

20 CIE IGCSE Chemistry questions on Concentration of solutions and solution calculations, each with instant feedback and a full examiner-style mark scheme.

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Question 1 · 1 mark · Difficulty 1/3

A student prepared a standard solution of potassium hydroxide for use in a titration. Which piece of apparatus should be used to measure exactly 250 cm³ of distilled water?

  1. Measuring cylinder
  2. Volumetric flask
  3. Conical flask
  4. Beaker
Show answer & explanation
✓ Answer: BVolumetric flask
Award 1 mark for identifying the volumetric flask as the apparatus used for preparing solutions of accurate volume. A is incorrect — a measuring cylinder is less accurate and used for approximate volumes. C is incorrect — a conical flask has no calibration mark for a specific volume. D is incorrect — a beaker has only approximate graduations.
Question 2 · 1 mark · Difficulty 2/3

What is the concentration, in g/dm³, of a solution containing 5.0 g of sodium chloride dissolved in 250 cm³ of water?

  1. 0.02 g/dm³
  2. 1.25 g/dm³
  3. 20 g/dm³
  4. 1250 g/dm³
Show answer & explanation
✓ Answer: C20 g/dm³
Award 1 mark for correct calculation: concentration = mass ÷ volume = 5.0 ÷ 0.250 = 20 g/dm³. A is incorrect — this results from dividing 5.0 by 250 without converting to dm³. B is incorrect — this multiplies mass by volume. D is incorrect — this multiplies 5.0 × 250 instead of dividing.
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20 questions · 25 min · free

CIE IGCSE Chemistry: Concentration of solutions and solution calculations FAQ

How many CIE IGCSE Chemistry questions on Concentration of solutions and solution calculations are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Concentration of solutions and solution calculations for CIE IGCSE Chemistry, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CIE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CIE IGCSE students preparing for Chemistry?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Concentration of solutions and solution calculations practice with other Chemistry topics or even switch to a totally different CIE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Concentration of solutions and solution calculations questions aligned to the official CIE IGCSE Chemistry syllabus?
Every question is written against the published CIE IGCSE Chemistry specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CIE.
How is Concentration of solutions and solution calculations typically tested on CIE IGCSE Chemistry papers?
Concentration of solutions and solution calculations appears across multiple question types on real CIE IGCSE Chemistry papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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