Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter4: Stoichiometry
Section: Chapter Questions
Problem 4.24PAE: 4.24 Ammonia gas can be prepared by the reaction CaO(s)+2NH4Cl(s)2NH3(g)+H2O(g)+CaCl2(s) If 112 g of...
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Question
if 80g of ethanol (CH5OH) are burnt completely, how many molecules of water would be produced ?
CH5OH(I)+2O2(g)=CO2(g)+3H2O(I)
Expert Solution
Step 1
Given combustion reaction of ethanol is as follows(corrected equation) :
C2H5OH (I) + 3O2 (g) -----> 2CO2 (g) + 3H2O (I)
given amount of ethanol available for combustion = 80 g
Molecular mass of ethanol = 46.07 g/mol
Moles of ethanol in given mass = 80 g/46.07 g/mol
= 1.74 moles
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