This reaction will consume
Start with the balanced chemical equation for this reaction (this is a carbothermic reaction)
Notice that you have a
In other words, regardless of how many moles of sodium sulfate react, you'll always need two times more moles of carbon for the reaction to take place.
Use sodium sulfate's molar mass to determine how many moles you have in 6.00 g
According to the mole ratio, you'll need
Now use carbon's molar mass to see how many grams you'd need
Rounded to three sig figs, the answer will be