The chemical reaction for making benzene from carbon and hydrogen is 6C+3H2 - C6H6. If 72 grams of hydrogen react completely, how many grams of benzene will be formed? Explain your answer.

Question

The chemical reaction for making benzene from carbon and hydrogen is 6C+3H2 -> C6H6. If 72 grams of hydrogen react completely, how many grams of benzene will be formed? Explain your answer.

anonymous · Answer

If I'm doing this right..start with a balanced equation always, which you have. We are going to convert grams H into moles H. 1 mole H is 1.008g. We can put these into a conversion factor like a fraction. Then we have 1 mole of Benzene per 3 moles of H (got this from balanced equation). Then, we want to go back to grams, so 78g is how much 1 mol of benzene weights because 1.00794g*6 Hydrogens + 12g*6carbons.|dw:1382476930208:dw|