Igcse Model Questions Vol1 2017 Chemistry Question 4

Practice practical question 4 from the 2017 Igcse Model Questions Vol1 Chemistry examination. This question covers Mole Concept .

Igcse Model Questions Vol1 2017 Chemistry Practical

Topic: Mole Concept

Question 4 IGCSE_MODEL_QUESTIONS_VOL1 • 2017 • CHEMISTRY • practical

A 0.845 g sample of an unknown hydrocarbon is burnt completely in excess oxygen in a combustion tube. The combustion products are passed through a series of traps and the following masses are collected: - Carbon dioxide (CO₂): 2.34 g\n- Water (H₂O): 0.945 g Using the data provided, answer the questions below.

Question Parts

( a )

Calculate the number of moles of carbon and hydrogen present in the original sample and determine its empirical formula.

( b )

The molar mass of the hydrocarbon is known to be 58 g mol⁻¹. Determine the molecular formula of the compound.

( c )

Calculate the number of molecules present in the original 0.845 g sample.

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About This Question

This is Igcse Model Questions Vol1 2017 Chemistry Question 4. It is one of the practical questions from the 2017 Igcse Model Questions Vol1 Chemistry examination.

The question covers Mole Concept .

View More Igcse Model Questions Vol1 2017 Chemistry Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

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