Neco Model Questions Vol1 2020 Chemistry Question 28
Practice objective / multiple choice question 28 from the 2020 Neco Model Questions Vol1 Chemistry examination.
A solid mixture containing 5.00 g of calcium carbonate (\(\mathrm{CaCO_{3}}\)) and 3.00 g of magnesium oxide (\(\mathrm{MgO}\)) is treated with excess aqueous hydrochloric acid according to\n\[\n\mathrm{CaCO_{3}} + 2\,\mathrm{HCl} \rightarrow \mathrm{CaCl_{2}} + \mathrm{CO_{2}} + \mathrm{H_{2}O},\n\]\n\[\n\mathrm{MgO} + 2\,\mathrm{HCl} \rightarrow \mathrm{MgCl_{2}} + \mathrm{H_{2}O}.\n\]\nCalculate: (a) the volume of carbon dioxide gas produced at STP, (b) the mass of calcium chloride formed, (c) the minimum volume of 0.50 M HCl required to complete both reactions.
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About This Question
This is Neco Model Questions Vol1 2020 Chemistry Question 28. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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