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Zumdahl and Zumdahl - Chemistry 5/e (Homework)

James Finch

Chemistry - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 17 / 18

Due : Thursday, April 16, 2020 10:00 EDT

Last Saved : n/a Saving...  ()

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Question
Points
1 2 3 4 5
–/4 –/1 –/3 –/5 –/6
Total
17/18 (94.4%)

  • Instructions

    Here are some textbook questions from Chemistry 5/e by Zumdahl and Zumdahl published by Houghton Mifflin. Click here for a list of all of the questions coded in WebAssign. This demo assignment allows many submissions and makes the answer key available after the first submission so you can see the correct answers. (Typically, the answer key is posted after the due date!)

Assignment Submission

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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Your last submission is used for your score.

1. –/4 points ZumChem5 1.E.030. My Notes
Question Part
Points
Submissions Used
1 2 3 4
–/1 –/1 –/1 –/1
0/50 0/50 0/50 0/50
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–/4
 
Perform the following mathematical operations, and express each result to the correct number of significant figures.
0.102 ✕ 0.0821 ✕ 273
(a)
1.01

WebAssign will check your answer for the correct number of significant figures.(No Response)

(b) 0.22 ✕ 6.022 ✕ 1023
WebAssign will check your answer for the correct number of significant figures.(No Response)

(c) 4.0 ✕ 104 ✕ 5.040 ✕ 10-3 ✕ 7.34993 ✕ 102
WebAssign will check your answer for the correct number of significant figures.(No Response)

6.00 ✕ 106
(d)
3.00 ✕ 10-7

WebAssign will check your answer for the correct number of significant figures.(No Response)
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2. –/1 points ZumChem5 5.E.064. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
Total
–/1
 
If the initial pressures of the H2 and N2 in the flasks in the figure below were instead 310. torr and 230. torr, respectively, what would be the final pressure after the stopcock is opened?
WebAssign will check your answer for the correct number of significant figures.(No Response) torr

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3. –/3 points ZumChem5 7.AE.116. My Notes
Question Part
Points
Submissions Used
1 2 3
–/1 –/1 –/1
0/50 0/50 0/50
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–/3
 
Although no currently known elements contain electrons in g orbitals in the ground state, it is possible that these elements will be found or that electrons in excited states of known elements could be in g orbitals. For g orbitals, the value of ℓ is 4. What is the lowest value of n for which g orbitals could exist?
(No Response) What are the possible values of mℓ?
    

How many electrons could a set of g orbitals hold?
(No Response)
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4. –/5 points ZumChem5 10.AE.104. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5
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0/50 0/50 0/50 0/50 0/50
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–/5
 
Use the accompanying phase diagram for carbon to answer the following questions.

(a) How many triple points are in the phase diagram?
(No Response) (b) What phases can coexist at each triple point? (Select all that apply.)
higher pressure triple point

lower pressure triple point



(c) What happens if graphite is subjected to very high pressures at room temperature?
(No Response)

This answer has not been graded yet.

(d) If we assume that the density increases with an increase in pressure, which is more dense, graphite or diamond?
    
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5. –/6 points ZumChem5 22.E.043. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5 6
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–/6
 
Mimosine is a natural product found in large quantities in the seeds and foliage of some legume plants and has been shown to cause inhibition of hair growth and hair loss in mice.

(a) What functional groups are present in mimosine? (Select all that apply.)


(b) Give the hybridization of the eight carbon atoms in mimosine. (Type your answer using the format sp2 for sp2.)
carbons in ring
(No Response)
carbon in -CO2H
(No Response)
other carbons
(No Response)
(c) How many σ and π bonds are found in mimosine?
σ bonds
(No Response)
π bonds
(No Response)
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