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Atkins and Jones - Chemical Principles 4/e (Homework)

James Finch

Chemistry - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 5 / 16

Due : Thursday, August 8, 2019 09:00 EDT

Last Saved : n/a Saving...  ()

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Question
Points
1 2 3 4 5 6
–/2 –/7 –/1 –/1 –/2 –/3
Total
5/16 (31.3%)

  • Instructions

    Here are some textbook questions from Chemical Principles: The Quest for Insight 4/e by Peter Atkins and Loretta Jones published by W. H. Freeman. Click here for a list of all of the questions coded in WebAssign. This demo assignment allows many submissions and allows you to try another version of the same question for practice.

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For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

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1. –/2 points AtJon4 1.E.028. My Notes
Question Part
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–/2
 
The Humphreys series is set of spectral lines in the emission spectrum of atomic hydrogen that ends in the fifth excited state. If an atom emits a photon of radiation of wavelength 5913 nm, to which spectral line in the Humphreys series does that photon correspond (i.e., the lowest-energy spectral line, the second-lowest-energy spectral line, the third-lowest-energy spectral line, etc.)?
    

Justify your answer with a calculation.
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2. –/7 points AtJon4 10.E.053. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5 6 7
–/1 –/1 –/1 –/1 –/1 –/1 –/1
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–/7
 
Calculate the pH and pOH of each of the following aqueous solutions. Refer to table 1 and table 2.
(a) 0.18 M CH3COOH(aq)
pH
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pOH
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(b) 0.18 M CCl3COOH(aq)
pH
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pOH
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(c) 0.18 M HCOOH(aq)
pH
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pOH
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(d) Explain any differences in pH on the basis of molecular structure.
(No Response)

This answer has not been graded yet.

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3. –/1 points AtJon4 18.E.056. My Notes
Question Part
Points
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1
–/1
0/50
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–/1
 
What reasons are there for using ethanol as a part of gasoline mixtures? (Select all that apply.)

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4. –/1 points AtJon4 2.E.058. My Notes
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1
–/1
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–/1
 
Which of the following species are radicals? (Select all that apply.)

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5. –/2 points AtJon4 3.E.024. My Notes
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1 2
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–/2
 
There are three different difluoroethenes, C2H2F2, which differ in the locations of the fluorine atoms.
(a) Which of the forms are polar? (Select all that apply.)


(b) Which has the largest dipole moment?
    
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6. –/3 points AtJon4 3.E.062. My Notes
Question Part
Points
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1 2 3
–/1 –/1 –/1
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–/3
 
Determine the bond orders of the following pair.
O2+
(No Response)
O2
(No Response) Use the bond orders to predict which species has the stronger bond.
    
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