WAEC Chemistry 2018 Objective — Question 5
Question 5 of 50 from the West African Examinations Council (WAEC) Chemistry 2018 Objective paper, with the correct answer and a full explanation.
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What is the solubility of a salt if 0.4g of it is obtained on evaporating 200cm³ of its saturated solution to dryness?
- A. 0.08 gdm⁻³
- B. 2.00 gdm⁻³Correct
- C. 8.00 gdm⁻³
- D. 80.00 gdm⁻³
Explanation
Solubility = mass/volume(dm³) = 0.4g / 0.2dm³ = 2.0 gdm⁻³.
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