Neco 2024 Chemistry Question 50

Practice objective / multiple choice question 50 from the 2024 Neco Chemistry examination.

Neco 2024 Chemistry Objective / Multiple Choice Medium Difficulty
Question 50 NECO • 2024 • CHEMISTRY • objective

A 10.0 g sample of CaCO\(_3\) is thermally decomposed to CaO and CO\(_2\). The CaO obtained is then treated with 5.0 g of HCl according to the reaction \(\text{CaO}+2\text{HCl}\rightarrow\text{CaCl}_2+\text{H}_2\text{O}\). Assuming an overall percent yield of 85 % for the formation of CaCl\(_2\), calculate the mass of CaCl\(_2\) actually obtained.

Answer Options

Correct Answer A. 6.46 g of CaCl₂
B. 7.34 g of CaCl₂
C. 5.12 g of CaCl₂
D. 4.87 g of CaCl₂
Correct Answer
A
Correct Option:
6.46 g of CaCl₂

About This Question

This is Neco 2024 Chemistry Question 50. It is one of the objective questions from the 2024 Neco Chemistry examination.

Difficulty level: Medium .

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