Igcse Model Questions Vol1 2024 Chemistry Question 4

Practice practical question 4 from the 2024 Igcse Model Questions Vol1 Chemistry examination. This question covers Mole Concept .

Igcse Model Questions Vol1 2024 Chemistry Practical

Topic: Mole Concept

Question 4 IGCSE_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • practical

A student collects an unknown gas over water at 298 K. The following data are recorded: - Volume of gas collected (corrected to dry gas): 250.0 cm³ (0.250 L)\n- Atmospheric pressure: 760 mm Hg\n- Vapor pressure of water at 298 K: 23.8 mm Hg\n- Mass of the dry gas collected: 0.277 g\nThe gas is assumed to behave ideally.

Question Parts

( a )

Calculate the number of moles of gas collected.

( b )

Determine the molar mass of the unknown gas.

( c )

From the following options, identify the gas: (i) N₂, (ii) O₂, (iii) CO₂, (iv) H₂.

( d )

State two possible sources of error that could affect the calculated molar mass.

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About This Question

This is Igcse Model Questions Vol1 2024 Chemistry Question 4. It is one of the practical questions from the 2024 Igcse Model Questions Vol1 Chemistry examination.

The question covers Mole Concept .

View More Igcse Model Questions Vol1 2024 Chemistry Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

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