Igcse Model Questions Vol1 2020 Chemistry Question 13

Practice objective / multiple choice question 13 from the 2020 Igcse Model Questions Vol1 Chemistry examination.

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

Question 13 IGCSE_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • objective

When a 2.00 g sample of an unknown metal carbonate \(\mathrm{MCO_3}\) is heated, it decomposes according to \(\mathrm{MCO_3 \rightarrow MO + CO_2}\). The carbon dioxide produced occupies 0.88 L at 25 °C and 100 kPa. Calculate the molar mass of the metal \(M\) (in g mol\(^{-1}\)).

Answer Options

A. 27.5

B. 22.0

C. 30.1

Correct Answer D. 24.3

Correct Answer

Correct Option:

24.3

About This Question

This is Igcse Model Questions Vol1 2020 Chemistry Question 13. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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Igcse Model Questions Vol1 2020 Chemistry Question 13

When a 2.00 g sample of an unknown metal carbonate \(\mathrm{MCO_3}\) is heated, it decomposes according to \(\mathrm{MCO_3 \rightarrow MO + CO_2}\). The carbon dioxide produced occupies 0.88 L at 25 °C and 100 kPa. Calculate the molar mass of the metal \(M\) (in g mol\(^{-1}\)).

Answer Options

About This Question

Master the Exam!

When a 2.00 g sample of an unknown metal carbonate \(\mathrm{MCO_3}\) is heated, it decomposes according to \(\mathrm{MCO_3 \rightarrow MO + CO_2}\). The carbon dioxide produced occupies 0.88 L at 25 °C and 100 kPa. Calculate the molar mass of the metal \(M\) (in g mol\(^{-1}\)).