Question
Asked Apr 5, 2019
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Elemental silicon can be produced by the reduction of silicon dioxide, or sand, with carbon:



SiO2 + 2 C → Si + 2 CO



When 35.0 kg of SiO2 react with 25.3 kg of C, 14.4 kg of Si are recovered. What is the percent yield for the reaction?
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Expert Answer

Step 1

Number of moles of SiO2 is determined as given.

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Step 2

Number of moles of C is calculated as follows.

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Step 3

Number of moles of Carbon is very much higher comparing to that of SiO2. Therefore, SiO2 is the limiting reagent. In the reactio...

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