Neco Model Questions Vol1 2024 Chemistry Question 4

Practice essay / theory question 4 from the 2024 Neco Model Questions Vol1 Chemistry examination. This question covers mole concept, stoichiometry, percentage composition .

Neco Model Questions Vol1 2024 Chemistry Essay / Theory
Topics: mole concept stoichiometry percentage composition
Question 4 NECO_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • essay
Neco Model Questions Vol1 2024 Chemistry Question 4 diagram

The diagram shows the crystal structure of copper(II) sulfate pentahydrate, CuSO₄·5H₂O.

Question Parts

( a )
Write the balanced chemical equation for the complete loss of water of crystallisation when the hydrate is heated strongly to give anhydrous copper(II) sulfate.
( b )
A sample weighing 10.0 g of the hydrate is heated until all water is removed. Calculate the number of moles of water vapour released.
( c )
From the same 10.0‑g sample, determine the mass of anhydrous CuSO₄ obtained after heating.
( d )
The anhydrous CuSO₄ obtained is dissolved in water to prepare a solution of concentration 0.250 mol dm⁻³. Calculate the volume of solution (in mL) required to contain all the copper originally present in the 10.0‑g sample.

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About This Question

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

The question covers mole concept, stoichiometry, percentage composition .

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