Neco 2022 Chemistry Question 39

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

Neco 2022 Chemistry Objective / Multiple Choice Medium Difficulty
Question 39 NECO • 2022 • CHEMISTRY • objective

A 2.00\,g sample of a non‑volatile solute is dissolved in 100.0\,g of water. The boiling point of the resulting solution is observed to be 100.5\,°C. Assuming the solute does not dissociate, calculate its molar mass. (Use \(K_{b}=0.512\;^{\circ}\mathrm{C\,kg\,mol^{-1}}\) for water.)

Answer Options

A. 5.1 g·mol⁻¹ (approximately)
B. 41.0 g·mol⁻¹ (approximately)
Correct Answer C. 20.5 g·mol⁻¹ (approximately)
D. 10.3 g·mol⁻¹ (approximately)
Correct Answer
C
Correct Option:
20.5 g·mol⁻¹ (approximately)

About This Question

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

Difficulty level: Medium .

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