Asked Apr 5, 2019
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?

Expert Answer

Step 1

Number of moles of SiO2 is determined as given.

Step 2

Number of moles of C is calculated as follows.

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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