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PlayOwl

Science · Grade 10

Solutions and Concentration

Learners explain dissolving with particle attractions ('like dissolves like'), separate how FAST something dissolves from how MUCH can dissolve, read solubility curves to predict crystallisation, and calculate concentrations as molarity and parts per million. They finish by planning safe dilutions with M₁V₁ = M₂V₂.

  • 4 lessons
  • About 110 minutes
  • Solutions check: 10 questions
  • Ways to answer: choose an answer, draw a graph, type a number, put in order, sort into groups and true or false
See plans Included with Family, Teacher and School plans. Open in PlayOwl

What learners will discover

  • Explain dissolving with particle attractions, predict solubility with 'like dissolves like', and distinguish the rate of dissolving from solubility.
  • Use solubility curves to classify solutions as unsaturated, saturated or supersaturated and to predict the mass of crystals formed on cooling.
  • Calculate molarity and parts per million, and the mass of solute needed to prepare a solution of given concentration.
  • Apply M₁V₁ = M₂V₂ to plan and explain a dilution.

Lessons

  1. How and why things dissolve 7 steps4 practiceabout 26 min
  2. Solubility curves 6 steps3 practiceabout 26 min
  3. Concentration: molarity and ppm 7 steps5 practiceabout 30 min
  4. Dilution 7 steps5 practiceabout 28 min
  5. Solutions check 10 questions at the end

Keep exploring

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Guide for grown-ups