Igcse Model Questions Vol1 2024 Chemistry Question 1

Practice practical question 1 from the 2024 Igcse Model Questions Vol1 Chemistry examination. This question covers Atomic structure, Empirical formula, Percentage composition .

Igcse Model Questions Vol1 2024 Chemistry Practical

Topics: Atomic structure Empirical formula Percentage composition

Question 1 IGCSE_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • practical

A sample of a hydrated copper(II) sulphate is analysed by heating in a crucible until a constant mass is obtained. The data recorded are: - Initial mass of crucible + sample = 15.00 g - Mass of crucible + residue after heating = 12.20 g The residue is known to be anhydrous CuSO₄. Using the data provided, answer the following questions.

Question Parts

( a )

Calculate the mass of water lost on heating.

( b )

Determine the empirical formula of the original hydrate (CuSO₄·xH₂O). Show all calculations.

( c )

Calculate the percentage by mass of copper in the hydrate CuSO₄·5H₂O.

( d )

Suggest one possible source of error that could affect the calculated percentage of copper and explain how it would influence the result.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Igcse Model Questions Vol1 2024 Chemistry Question 1. It is one of the practical questions from the 2024 Igcse Model Questions Vol1 Chemistry examination.

The question covers Atomic structure, Empirical formula, Percentage composition .

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

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Chat with Support