Answer:
96g
Explanation:
To know the exact mass of carbon (C) to add to the reaction, we need to convert 8 moles of carbon (C) to grams.
This is illustrated below:
Molar mass of C = 12g/mol
Number of mole of C = 8 moles
Mass of C =..?
Mass = number of mole x molar mass
Mass of C = 8 x 12
Mass of C = 96g
Therefore, 96g of carbon (C) is needed.
The number of grams of Carbon should I weigh is 96g
Since the chemical equation is SiO2 + 3C - SiC + 2CO and it required to add 8 moles of Carbon to the reaction.
So,
Molar mass of C = 12g/mol
Number of mole of C = 8 moles
Now
Mass = number of mole x molar mass
= 8 x 12
= 96g
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