Neco Model Questions Vol1 2018 Chemistry Question 36

Practice objective / multiple choice question 36 from the 2018 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2018 Chemistry Objective / Multiple Choice Medium Difficulty
Question 36 NECO_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • objective

An unknown compound contains by mass 40.0\% C, 6.7\% H and 53.3\% O. Its molar mass is 180\,g\,mol^{-1}. When 2.00\,g of the compound is completely combusted, how many moles of water are formed? Give your answer to three significant figures.

Answer Options

Correct Answer A. 6.67\times10^{-2}\,\text{mol}
B. 8.33\times10^{-2}\,\text{mol}
C. 1.00\times10^{-1}\,\text{mol}
D. 5.00\times10^{-2}\,\text{mol}
Correct Answer
A
Correct Option:
6.67\times10^{-2}\,\text{mol}

About This Question

This is Neco Model Questions Vol1 2018 Chemistry Question 36. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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