Neco Model Questions Vol1 2020 Chemistry Question 12

Practice objective / multiple choice question 12 from the 2020 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2020 Chemistry Objective / Multiple Choice Medium Difficulty

Question 12 NECO_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • objective

Neco Model Questions Vol1 2020 Chemistry Question 12 diagram

A student reacts 0.500 g of an unknown metal carbonate \(\text{MCO}_{3}\) with excess HCl. The CO\(_2\) gas produced is collected over water at 25 °C and a total pressure of 750 mmHg. The volume of gas collected is 0.350 L. The vapour pressure of water at 25 °C is 23.8 mmHg. Determine the molar mass of the metal M.

Answer Options

A. 45.2\ \text{g mol}^{-1}

Correct Answer B. 36.6\ \text{g mol}^{-1}

C. 55.0\ \text{g mol}^{-1}

D. 28.0\ \text{g mol}^{-1}

Correct Answer

Correct Option:

36.6\ \text{g mol}^{-1}

About This Question

This is Neco Model Questions Vol1 2020 Chemistry Question 12. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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