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Silicon carbide is made by allowing sand to react with powdered carbon at high temperature. CO is also formed. When 100 kg of sand are processed 51.4 kg of SiC is obtained. Find the % yield of SiC.

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SiO2 + 3C → SiC + 2CO

Moles of SiO2 that can be produces 

Mass of SiO2 that can be produced = 1666.66 x 40 = 66.64 kg

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