3. Silicon carbide, SiC, is prepared by heating silicon dioxide in the presence of graphite. Carbon dioxide is the by-product of the reaction. How many grams of silicon carbide can be formed from the reaction of 50.0 grams of graphite with 50.0 grams of silicon dioxide

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

Thus, by stoichiometry, the limiting reagent is computed by comparing the available moles of silicon dioxide and the consumed moles of silicon dioxide by graphite as shown below:

In such a way, since there will be less available silicon dioxide, it is the limiting reagent, therefore, the grams of silicon carbide, turns out:

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