Solid bismuth oxide can react with carbon to form bismuth metal and carbon monoxide. How many grams of bismuth oxide reacted if 60.7 grams of bismuth is formed?

Md Ariful Islam

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Md Ariful Islam

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The answer is $67.6$ $g$.

First, start with the balanced chemical equation

$Bi_2O_(3(s)) + 3C_((s)) -> 2Bi_((s)) + 3CO_((g))$

We know the molar masses of $Bi$ ($209g/(mol)$) and $Bi_2O_3$ ($466g/(mol)$), and the between $Bi$ and $Bi_2O_3$, so we could say that

$60.7gBi* (1 mol e Bi)/(209g) * (1 mol e Bi_2O_3)/(2 mol es Bi) * (466g)/(1 mol e Bi_2O_3) = 67.6g Bi_2O_3$

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