The reversible reaction of t-butyl alcohol (TBA) and ethanol (EtOH) to ethylt-butyl ether (ETBE) isTBA + EtOH ETBE + WaterThe equilibrium constant for this reaction is KC = 1. Initially, 74 g of TBA is mixed with 100g of aqueous solution containing 46 weight% ethanol. The molecular weights are:74g/mol for TBA. 46g/mol for EtOH, 102g/mol for ETBE, and 18 g/mol for water.The mass of ETBE at equilibrium, rounded to 1 decimal place, is ____g.Correct answer is '20.4'. Can you explain this answer?

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The reversible reaction of t-butyl alcohol (TBA) and ethanol (EtOH) to ethylt-butyl ether (ETBE) is
TBA + EtOH

ETBE + Water
The equilibrium constant for this reaction is K_C = 1. Initially, 74 g of TBA is mixed with 100g of aqueous solution containing 46 weight% ethanol. The molecular weights are:74g/mol for TBA. 46g/mol for EtOH, 102g/mol for ETBE, and 18 g/mol for water.

The mass of ETBE at equilibrium, rounded to 1 decimal place, is ____g.

Correct answer is '20.4'. Can you explain this answer?

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Chemical Engineering- CH 2017 GATE Paper MCQ Quiz

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The reversible reaction of t-butyl alcohol (TBA) and ethanol (EtOH) to...

Let x mole of ETBE present of equilibrium mass of EtOH=46 g
Mass of water = 54g

Moles of EtOH = 46/46mol = 1 mol
Moles of water = 54/18 = 3 mol
TBA + EtOH

ETBE + water

x = 0.2
Moles of ETBE = 0.2
Moles of ETBE = 0.2 (102) = 20.4 gm

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The reversible reaction of t-butyl alcohol (TBA) and ethanol (EtOH) to ethylt-butyl ether (ETBE) isTBA + EtOH ETBE + WaterThe equilibrium constant for this reaction is KC = 1. Initially, 74 g of TBA is mixed with 100g of aqueous solution containing 46 weight% ethanol. The molecular weights are:74g/mol for TBA. 46g/mol for EtOH, 102g/mol for ETBE, and 18 g/mol for water.The mass of ETBE at equilibrium, rounded to 1 decimal place, is ____g.Correct answer is '20.4'. Can you explain this answer?

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