Igcse Model Questions Vol1 2024 Chemistry Question 8

Practice essay / theory question 8 from the 2024 Igcse Model Questions Vol1 Chemistry examination. This question covers Solubility, K_sp, Common‑ion effect, Ionic strength, Temperature effect .

Igcse Model Questions Vol1 2024 Chemistry Essay / Theory
Topics: Solubility K_sp Common‑ion effect Ionic strength Temperature effect
Question 8 IGCSE_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • essay

A laboratory investigation was carried out to study the solubility of calcium sulphate (CaSO₄) in water at different temperatures.

Question Parts

( a )
The solubility product of CaSO₄ at 25 °C is K_sp = 2.4 × 10⁻⁵ (mol² dm⁻⁶). Calculate the molar solubility (s) of CaSO₄ at this temperature.
( b )
In a separate experiment 1.00 g of CaSO₄ was added to 200 cm³ of water at 25 °C, stirred until equilibrium and then filtered. The mass of undissolved solid recovered was 0.30 g. Using the result, determine the experimental molar solubility and discuss two possible reasons for any difference from the theoretical value obtained in part (a).

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About This Question

This is Igcse Model Questions Vol1 2024 Chemistry Question 8. It is one of the essay questions from the 2024 Igcse Model Questions Vol1 Chemistry examination.

The question covers Solubility, K_sp, Common‑ion effect, Ionic strength, Temperature effect .

View More Igcse Model Questions Vol1 2024 Chemistry Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

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