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WAEC Chemistry questions: Solubility

16 questions with answers and explanations. Tap an option to check yourself.

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All topicsAcids, bases and salts · 26Air · 16Atomic structure and bonding · 26Chemical combination · 27Chemical equilibrium · 16Chemistry and industry · 17Electrolysis · 19Energy changes · 16Environmental pollution · 15Kinetic theory of matter and gas laws · 18Metals and their compounds · 23Non-metals and their compounds · 22Organic compounds · 29Oxidation and reduction · 19Rates of chemical reaction · 16Separation of mixtures and purification · 18Solubility · 16Water · 18

  1. Question 1· Solubility· WAEC

    A solution that can dissolve no more solute at a given temperature is said to be

    Explanation and discussion

  2. Question 2· Solubility· WAEC

    A solution in which more solute can still dissolve at that temperature is

    Explanation and discussion

  3. Question 3· Solubility· WAEC

    Particles in a colloid differ from those in a true solution in that they

    Explanation and discussion

  4. Question 4· Solubility· WAEC

    The solubility of most gases in water

    Explanation and discussion

  5. Question 5· Solubility· WAEC

    Fish in a shallow pond may die on a very hot afternoon mainly because

    Explanation and discussion

  6. Question 6· Solubility· WAEC

    The solubility of KCl at 30 °C is 37 g per 100 g of water. What mass of KCl saturates 200 g of water at 30 °C?

    Explanation and discussion

  7. Question 7· Solubility· WAEC

    The solubility of a salt is 30 g per 100 g of water at 25 °C. The mass that dissolves in 250 g of water is

    Explanation and discussion

  8. Question 8· Solubility· WAEC

    Crystals form when a hot saturated solution of potassium trioxonitrate(V) is cooled because

    Explanation and discussion

  9. Question 9· Solubility· WAEC

    Which of these is a suspension?

    Explanation and discussion

  10. Question 10· Solubility· WAEC

    Undissolved sugar remains at the bottom of a cup of tea after long stirring at a fixed temperature. The tea is

    Explanation and discussion

  11. Question 11· Solubility· WAEC

    Mayonnaise, made by shaking oil with egg and vinegar, is an example of

    Explanation and discussion

  12. Question 12· Solubility· WAEC

    Which gas is most soluble in water at room temperature?

    Explanation and discussion

  13. Question 13· Solubility· WAEC

    A solution containing more solute than it can normally hold at that temperature is

    Explanation and discussion

  14. Question 14· Solubility· WAEC

    A solubility curve shows

    Explanation and discussion

  15. Question 15· Solubility· WAEC

    The solubility of a salt is 36 g per 100 g of water at 25 °C. What mass of it dissolves in 250 g of water at that temperature?

    Explanation and discussion

  16. Question 16· Solubility· WAEC

    20 g of a salt dissolves in 50 g of water at 30 °C. Its solubility at 30 °C, in grams per 100 g of water, is

    Explanation and discussion

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