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Silberberg - Principles of General Chemistry 2/e (Homework)

James Finch

Chemistry - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 20 / 26

Due : Friday, January 17, 2020 08:00 EST

Last Saved : n/a Saving...  ()

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Question
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20/26 (76.9%)

  • Instructions

    Principles of General Chemistry 2/e by Martin Silberberg published by McGraw-Hill Higher Education now has animations with conceptual questions and tutorial problems offering feedback and hints to guide student content mastery, as well as over 1150 end-of-chapter questions. See the detail page for an overview of all the questions available. You can check out a sampling of this exciting development below.

    Designed by teachers for teachers, WebAssign is easy to use and reliable -- a trusted companion to your teaching.

    Question 1 is an animation with an assignable quiz attached.

    Question 2 is a Follow-up Problem which checks student understanding of the related Sample Problem in the textbook. Follow-up Problem 3.1, for example, is directly related to Sample Problem 3.1.

    Question 3 and 4 are algorithmic end-of-chapter problems with conditional feedback added to the numerical answers.

    Question 5 is an end-of-chapter problem which has been converted into a multple choice format. These questions are available for every question in Silberberg.

    Question 6 is a supplemental "testbank" style question. These questions provide additional coverage of topics throughout the textbook. This demo assignment allows many submissions and allows you to try another version of the same question for practice wherever the problem has randomized values.

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.

Assignment Scoring

Your last submission is used for your score.

1. –/6 points SilberP2 4.A.01. My Notes
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Strong, Weak and Nonelectrolytes Use the animation to answer the following questions.
(a) As NaCl dissolves in water, the reddish brown bar (second bar) on the bar graph which represents:
    


(b) When the solid compound shown in the animation dissolves, the light bulb is (No Response) because the solid is a (an)(No Response) .

(c) HF is depicted in the animation by all of the following except:
    


(d) Methanol does not:
    


(e) In the animation, which of the following is not linked to the electrolytic behavior of a solute?
    
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2. –/4 points SilberP2 3.FollowUp.10. My Notes
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FOLLOW-UP PROBLEM 3.10 Calculating Amounts of Products in a Limiting-Reactant Problem about this problem
B2 (red spheres) reacts with AB as shown below.
(a) Write a balanced equation for the reaction. (Use the lowest possible coefficients.)

chemPad

Help

 


(b) Determine the limiting reactant.

chemPad

Help

 


(c) How many moles of product can be formed from the reaction of 2.0 mol of each reactant? (Assume the given moles of B2 with extra AB and then the given moles of AB with extra B2 in two separate reaction mixtures.)
B2 WebAssign will check your answer for the correct number of significant figures.(No Response) mol
AB WebAssign will check your answer for the correct number of significant figures.(No Response) mol

HINTS
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3. –/4 points SilberP2 1.EOCP.044. My Notes
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How many significant zeros are in the following numbers?
(a) 500
(No Response)

(b) 0.0960
(No Response)

(c) 6006
(No Response)

(d) 8.00
(No Response)
Your work in question(s) will also be submitted or saved.
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4. –/6 points SilberP2 2.EOCP.027. My Notes
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Do both members of the following pairs have the same number of protons, neutrons, or electrons?
(a) 31H and 32He

(b) 146C and 157N

(c) 199F and 189F

Which pair(s) consist(s) of atoms with the same Z value?
    
Which pair(s) consist(s) of atoms with the same N value?
    
Which pair(s) consist(s) of atoms with the same A value?
    
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5. –/1 points SilberP2 5.TB.015. My Notes
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Which of the lines on the figure below is the best representation of the relationship between the volume of a gas and its pressure, other factors remaining constant?
(No Response)

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6. –/1 points SilberP2 19.Supp.2.02. My Notes
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Consider the following titration graph. Assume that the unknown acid is titrated with NaOH. The unknown acid must be a
    
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