Igcse Model Questions Vol1 2019 Chemistry Question 8
Practice essay / theory question 8 from the 2019 Igcse Model Questions Vol1 Chemistry examination. This question covers Solubility product, Common ion effect, Temperature effect on solubility, Precipitation reactions .
The solubility product of silver chloride at 25 °C is Ksp(AgCl) = 1.8 × 10⁻¹⁰. A solution is prepared by dissolving 0.50 g of NaCl in 250 mL of water at 25 °C. Excess solid AgNO₃ is then added until the solution becomes saturated with respect to AgCl. (a) Calculate the mass of AgCl that precipitates. (b) The temperature is raised to 35 °C, where Ksp(AgCl) = 2.5 × 10⁻¹⁰. i. Determine the new solubility of AgCl (in mol L⁻¹) at 35 °C. ii. If the saturated solution from part (a) is heated to 35 °C, calculate the mass of AgCl that will dissolve back into the solution. (c) Explain qualitatively how the addition of 0.10 M NaNO₃ to the saturated solution at 25 °C would affect the amount of AgCl that remains dissolved, citing the relevant principle.
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This is Igcse Model Questions Vol1 2019 Chemistry Question 8. It is one of the essay questions from the 2019 Igcse Model Questions Vol1 Chemistry examination.
The question covers Solubility product, Common ion effect, Temperature effect on solubility, Precipitation reactions .
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