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# Urea (CH4N2O), a common fertilizer, can be synthesized by ISBN: 9780321910295 34

## Solution for problem 93P Chapter 8

Introductory Chemistry | 5th Edition

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Problem 93P

PROBLEM 93P

Urea (CH4N2O), a common fertilizer, can be synthesized by the reaction of ammonia (NH3) with carbon dioxide:

2 NH1(aq) + CO2(aq) → CH4N2O(aq) + H2O(l)

An industrial synthesis of urea produces 87.5 kg of urea upon reaction of 68.2 kg of ammonia with 105 kg of carbon dioxide. Determine the limiting reactant, theoretical yield of urea, and percent yield for the reaction.

Step-by-Step Solution:

Solution 93P

Step 1:

2 NH3(aq) + CO2(aq) → CH4N2O(aq) + H2O(l)

Given that mass of  ammonia  is 68.2 Kg

Number of moles of ammonia =Given mass/Molecular mass

Molecular mass of ammonia=17g/mol

Thus number of moles of ammonia= =4004 moles

Step 2:

Given that mass of carbondioxide is 105Kg

Number of moles of carbondioxide =Given mass/Molecular mass

Molecular mass of carbondioxide=44g/mol

Thus number of moles of carbondioxide= =2386.3 moles

Step 3:

From the equation it is clear that 2 mole of ammonia combines with 1 mole of   carbondioxide.Thus we can say that the ratio in which both the compound should be present is 2:1.In other words the amount of ammonia should be twice the amount of carbondioxide

2 2386.3=4772.6 moles of ammonia should be present.Since the amount of ammonia is lesser than this (4004 moles),we can say that it is the limiting reagent

Step 4 of 5

Step 5 of 5

##### ISBN: 9780321910295

The full step-by-step solution to problem: 93P from chapter: 8 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. Since the solution to 93P from 8 chapter was answered, more than 1033 students have viewed the full step-by-step answer. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. The answer to “Urea (CH4N2O), a common fertilizer, can be synthesized by the reaction of ammonia (NH3) with carbon dioxide:2 NH1(aq) + CO2(aq) ? CH4N2O(aq) + H2O(l)An industrial synthesis of urea produces 87.5 kg of urea upon reaction of 68.2 kg of ammonia with 105 kg of carbon dioxide. Determine the limiting reactant, theoretical yield of urea, and percent yield for the reaction.” is broken down into a number of easy to follow steps, and 60 words. This full solution covers the following key subjects: urea, reaction, ammonia, carbon, dioxide. This expansive textbook survival guide covers 19 chapters, and 2045 solutions.

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