Chemistry, 08.01.2021 03:40 ROYALDRAGONX
2. Ethanol is used as a component in fuel for some vehicles. One fuel mixture contains 10% by
mass of ethanol in unleaded petrol (gasoline). This mixture is often referred to as Gasohol E10
a) Assume that the other 90% by mass of Gasohol E10 is octane. 1.00 kg of this fuel mixture
was burned.
CH, CH, OH(1) + 302(9) — 2002(9) + 3H2O(1)
AH = -1367 kJ molt
CH,30 + 12 029) — 8C02(9) +9H, O()
AH = -5470 kJ molt
(i) Calculate the mass, in g, of ethanol and octane in 1.00 kg of the fuel mixture!
Must show work to receive full credit. Answer within this box.
Answers: 2
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2. Ethanol is used as a component in fuel for some vehicles. One fuel mixture contains 10% by
mass...
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