The question for a reaction occurring in the synthesis of methanol is:
CO2+3H2 ==> CH3OH + H2O
What is the maximum amount of methanol that can be formed from 2 mol of carbon dioxide and 3 mol of hydrogen
Chemistry HELP!?
2016-11-01 3:15 pm
回答 (1)
2016-11-01 3:31 pm
✔ 最佳答案
Molar mass of CH₃OH = (12.0 + 1.0×4 + 16.0) g/mol = 32.0 g/molCO₂ + 3H₂ → CH₃OH + H₂O
Or: Mole ratio CO₂ : H₂ = 1 : 3
When 3 moles of H₂ completely reacts, 1 mole of CO₂ is needed.
Hence, H₂ is in excess, and CO₂ completely reacts.
Refer to the above equation. Mole ratio CO₂ : CH₃OH = 1 : 1
No. of moles of CO₂ reacted = 1 mol
No. of moles of CH₃OH formed = 1 mol
Mass of CH₃OH formed = (1 mol) × (32.0 g/mol) = 32.0 g
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