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Urea, (NH2)2CO 60.06 g/mol, is used as a fertilizer, an active ingredient in skin care lotions, and an important raw material for the chemical industry.   Urea can be made in the lab by the following reaction:  COCl2 + 4 NH3 → (NH2)2CO + 2 NH4Cl   What is the largest amount of urea that could be produced when 75.5 g of COCl2 are allowed to react with 45.5 g NH3 ?   Useful molar masses:  (NH2)2CO = 60.06 g/mol,       COCl2 = 98.92 g/mol,      NH3 = 17.04 g/mol a)40.1 g b)37.6 g c)20.0 g d)46.8 g e)11.5 g

Urea, (NH2)2CO 60.06 g/mol, is used as a fertilizer, an active ingredient in skin care lotions, and an important raw material for the chemical industry.   Urea can be made in the lab by the following reaction:  COCl2 + 4 NH3 → (NH2)2CO + 2 NH4Cl   What is the largest amount of urea that could be produced when 75.5 g of COCl2 are allowed to react with 45.5 g NH3 ?   Useful molar masses:  (NH2)2CO = 60.06 g/mol,       COCl2 = 98.92 g/mol,      NH3 = 17.04 g/mol a)40.1 g b)37.6 g c)20.0 g d)46.8 g e)11.5 g

Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter5: Stoichiometry
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Urea, (NH2)2CO 60.06 g/mol, is used as a fertilizer, an active ingredient in skin care lotions, and an important raw material for the chemical industry.

 

Urea can be made in the lab by the following reaction:  COCl2 + 4 NH3 → (NH2)2CO + 2 NH4Cl

 

What is the largest amount of urea that could be produced when 75.5 g of COCl2 are allowed to react with 45.5 g NH3 ?

 

Useful molar masses:  (NH2)2CO = 60.06 g/mol,       COCl2 = 98.92 g/mol,      NH3 = 17.04 g/mol

a)40.1 g
b)37.6 g
c)20.0 g
d)46.8 g
e)11.5 g
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