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anonymous
 5 years ago
Liquid acetaldehyde reacts according to the balanced equation. If a total of 5550 kJ of heat is generated in the reaction as written, how many grams of CH3CHO are consumed?
2 CH3CHO(l) + 5 O2(g) → 4 CO2(g) + 4 H2O(l) .
Enthalpy: 2335.0 kJ
Molar Mass
CH3CHO 44.05
O2 31.999
CO2 44.001
H2O 18.015
anonymous
 5 years ago
Liquid acetaldehyde reacts according to the balanced equation. If a total of 5550 kJ of heat is generated in the reaction as written, how many grams of CH3CHO are consumed? 2 CH3CHO(l) + 5 O2(g) → 4 CO2(g) + 4 H2O(l) . Enthalpy: 2335.0 kJ Molar Mass CH3CHO 44.05 O2 31.999 CO2 44.001 H2O 18.015

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Chemical equations express ratios based upon moles, so 2 moles of acetaldehyde generates 2335.0 kJ. 5550 kJ is more than twice as much energy, so you would have at least 5 moles of acetaldehyde (x moles/5550 kJ = 2 moles/2335.0 kJ)
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