Gce Model Questions Vol1 2022 Chemistry Question 15
Practice objective / multiple choice question 15 from the 2022 Gce Model Questions Vol1 Chemistry examination.
A solution is prepared by dissolving 5.00 g of a non‑volatile solute (molar mass 180 g mol⁻¹) in 200.0 g of water. The boiling‑point elevation constant for water is \(K_b = 0.512\,^{\circ}\!\text{C\,kg\,mol}^{-1}\).\n(a) Calculate the elevation in boiling point of the solution.\n(b) If the solution is then cooled until it freezes at \(-2.0^{\circ}\!\text{C}\), determine the molality of the solute in the liquid phase assuming the freezing‑point depression constant for water is \(K_f = 1.86\,^{\circ}\!\text{C\,kg\,mol}^{-1}\).\n(c) Discuss whether the solute is likely to be an electrolyte based on the results.
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This is Gce Model Questions Vol1 2022 Chemistry Question 15. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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