Neco 2017 Chemistry Question 44

Practice objective / multiple choice question 44 from the 2017 Neco Chemistry examination.

Neco 2017 Chemistry Objective / Multiple Choice Medium Difficulty
Question 44 NECO • 2017 • CHEMISTRY • objective

Calcium carbonate reacts with excess hydrochloric acid according to \[\text{CaCO}_3 + 2\text{HCl} \rightarrow \text{CaCl}_2 + \text{CO}_2 + \text{H}_2\text{O}.\] If \(5.0\ \text{g}\) of \(\text{CaCO}_3\) are used, calculate: (a) the volume of \(\text{CO}_2\) gas produced at STP (22.4 L mol\(^{-1}\)); (b) the mass of calcium chloride formed; (c) the percent yield if \(0.90\ \text{L}\) of \(\text{CO}_2\) were actually collected.

Answer Options

Correct Answer A. (a) 1.12 L; (b) 5.55 g; (c) 80.4 %
B. (a) 1.00 L; (b) 5.00 g; (c) 75.0 %
C. (a) 0.56 L; (b) 2.78 g; (c) 40.2 %
D. (a) 2.24 L; (b) 11.1 g; (c) 160.8 %
Correct Answer
A
Correct Option:
(a) 1.12 L; (b) 5.55 g; (c) 80.4 %

About This Question

This is Neco 2017 Chemistry Question 44. It is one of the objective questions from the 2017 Neco Chemistry examination.

Difficulty level: Medium .

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