
Concept explainers
Billions of pounds of urea,
By assuming unlimited amounts of CO2, how many moles of urea can be produced from each of the following amounts of

Interpretation:
The number of moles of urea is to be determined in the given amounts of
Concept introduction:
The characteristic mass of a compound is the formula mass of the compound, which is obtained by adding the atomic masses of all atoms.
A conversion factor is a numerical ratio, which is used to change one unit into another.
The chemical formula represents the precise number of atoms in a molecule, but not their structural arrangement.
Answer to Problem 54E
Solution: The number of moles of urea present in the molecules is given as follows:
Explanation of Solution
a)
The equivalence is obtained between moles of
In order to obtain the moles of urea, the conversion factor proceeds as follows:
Therefore, the number of moles of urea is
b)
The equivalence is obtained between moles of
In order to obtain the moles of urea, the conversion factor proceeds as follows:
Therefore, the moles of urea are
c)
The equivalence is obtained between grams of
The equivalence is obtained between moles of
In order to obtain the moles of urea, the conversion factor proceeds as follows:
Here,
Therefore, the moles of urea are
d)
The equivalence is obtained between grams of
The equivalence is obtained between moles of
In order to obtain the moles of urea, the conversion factor proceeds as follows:
Here,
Therefore, the moles of urea are
Want to see more full solutions like this?
Chapter 4 Solutions
Chemistry In Focus
- Don't used hand raiting and don't used Ai solution and correct answerarrow_forwardH R Part: 1/2 :CI: is a/an electrophile Part 2 of 2 Draw the skeletal structure of the product(s) for the Lewis acid-base reaction. Include lone pairs and formal charges (if applicable) on the structures. 4-7: H ö- H Skip Part Check X :C1: $ % L Fi Click and drag to start drawing a structure. MacBook Pro & ㅁ x G 0: P Add or increase positive formal cha Save For Later Submit ©2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Centearrow_forwardDraw the friedel-crafts acylation mechanism of m-Xylenearrow_forward
- Don't used hand raiting and don't used Ai solutionarrow_forward1. Base on this experimental results, how do you know that the product which you are turning in is methyl 3-nitrobenzoate(meta substituted product ) rather than either of the other two products? 2. What observation suggests that at least a small amount of one or both of the other two isomers are in the mother liquor?arrow_forwardExplain Huckel's rule.arrow_forward
- here is my question can u help me please!arrow_forwardSo I need help with understanding how to solve these types of problems. I'm very confused on how to do them and what it is exactly, bonds and so forth that I'm drawing. Can you please help me with this and thank you very much!arrow_forwardSo I need help with this problem, can you help me please and thank you!arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning





