Neco Model Questions Vol1 2019 Chemistry Question 21
Practice objective / multiple choice question 21 from the 2019 Neco Model Questions Vol1 Chemistry examination.
An ore sample weighing 100.0 g contains 34.5% copper by mass. The ore is first roasted to convert the copper sulfide to copper(I) oxide (Cu₂O), which is then reduced with carbon according to \(\mathrm{Cu_2O + C \rightarrow 2\,Cu + CO}\). Only 85% of the Cu₂O present is actually reduced. Calculate (a) the mass of copper metal obtained and (b) the overall percent yield based on the copper originally present in the ore.
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About This Question
This is Neco Model Questions Vol1 2019 Chemistry Question 21. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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