Neco Model Questions Vol1 2022 Chemistry Question 39

Practice objective / multiple choice question 39 from the 2022 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2022 Chemistry Objective / Multiple Choice Medium Difficulty
Question 39 NECO_MODEL_QUESTIONS_VOL1 • 2022 • CHEMISTRY • objective

The solubility of a solid salt in water is 5.0 g per 100 g water at \(25^{\circ}\text{C}\) and 7.5 g per 100 g water at \(35^{\circ}\text{C}\). Assuming the enthalpy of solution \(\Delta H_{\text{sol}}\) is constant over this temperature range, use the van't Hoff equation to estimate the solubility at \(45^{\circ}\text{C}\). Give your answer in grams of solute per 100 g water (to one decimal place).

Answer Options

A. 13.8 g per 100 g water
Correct Answer B. 11.0 g per 100 g water
C. 12.3 g per 100 g water
D. 9.5 g per 100 g water
Correct Answer
B
Correct Option:
11.0 g per 100 g water

About This Question

This is Neco Model Questions Vol1 2022 Chemistry Question 39. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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