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Burdge - Chemistry 3/e (Homework)

James Finch

Chemistry - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 18 / 26

Due : Thursday, August 29, 2019 08:00 EDT

Last Saved : n/a Saving...  ()

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Question
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18/26 (69.2%)

  • Instructions

    Chemistry 3/e by Julia Burdge published by McGraw-Hill Higher Education features over 4500 questions. Questions include animations with conceptual questions, tutorial problems offering feedback and hints to guide student content mastery, a collection of over 1150 end-of-chapter questions, a complete test bank, and additional supplemental problems.

    Click here for a list of all of the questions coded in WebAssign.

    Question 1 is an animation with an assignable quiz attached.

    Question 2 is a follow-up Practice Exercise which checks student understanding of the related Example in the textbook. Practice Exercise 1.6, for example, is directly related to Exercise 1.PE.006.

    Question 3 is an algorithmic end-of-chapter problem using the chemPad answer entry palette. With chemPad, students receive intelligent feedback based on their incorrect answers.

    Question 4 is a typical end of chapter problem, using significant figure rules and providing feedback for incorrect answers.

    Question 5 is an algorithmic end-of-chapter problem requiring students to use the MarvinSketch tool to draw and submit structures for instant grading.

    Question 5 is a supplemental multiple choice question. These questions provide additional coverage of topics throughout the textbook.

    Question 7 is a question from the textbook's testbank. 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. –/5 points BurdgeChem3 3.A.002. My Notes
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Stoichiometry Use the animation to answer the following questions.
(a) In the reaction of H2 with O2, if the maximum amount of O2 is used:
    

(b) In the reaction of H2 with O2, if 6 moles of H2 molecules are used:
    

(c) When H2 reacts with I2, as the number of moles of product increases:
    

(d) In the reaction producing HI, if 768 grams of HI form:
    

(e) Consider the reaction: H + H → H2. This is the only reaction in the animation in which:
    
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2. –/5 points BurdgeChem3 1.PE.006. My Notes
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–/5
 
Practice Exercise 1.6 about this problem
Perform the following arithmetic operations and round off the answers to the appropriate number of significant figures.
(a) 107.1 L + 10.54 L
WebAssign will check your answer for the correct number of significant figures.(No Response) L

(b) (81.042 m) - (0.26 m)
WebAssign will check your answer for the correct number of significant figures.(No Response) m

(c) 3.792 1021 atoms + 1.248 1019 atoms
WebAssign will check your answer for the correct number of significant figures.(No Response) atoms

(d) (1.271 dm) ✕ (48 dm)
WebAssign will check your answer for the correct number of significant figures.(No Response) dm

(e) 119 g ÷ 275.31 mL
WebAssign will check your answer for the correct number of significant figures.(No Response) g/mL
HINTS
I'm Stuck
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3. –/1 points BurdgeChem3 6.E.094. My Notes
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–/1
 
Use the Aufbau principle to obtain the ground-state electron configuration of cadmium.

chemPad

Help

 
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4. –/2 points BurdgeChem3 3.E.088. My Notes
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–/2
 
Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a dark-brown gas.
2 NO(g) + O2(g) → 2 NO2(g)
In one experiment 0.714 mole of NO is mixed with 0.400 mole of O2.
Determine which of the two reactants is the limiting reactant.
    

Calculate also the number of moles of NO2 produced.
WebAssign will check your answer for the correct number of significant figures.(No Response) mole
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5. –/4 points BurdgeChem3 8.E.116. My Notes
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–/4
 
Draw Lewis structures for the following organic molecules. (Assign atomic charges where appropriate.)
(a) methylamine (CH3NH2), which is used in tanning
(No Response)

(b) tetraethyllead [Pb(CH2CH3)4], which is used in ''leaded gasoline''
(No Response)

(c) methanol (CH3OH)
(No Response)

(d) urea [(NH2)2CO], a fertilizer
(No Response)
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6. –/1 points BurdgeChem3 3.S.7-09. My Notes
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Which of the following chemical equations is NOT balanced?
    
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7. –/8 points BurdgeChem3 3.TB.115. My Notes
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Refer to the (unbalanced) equation:
(a) Balance this equation.
(No Response) CS2 + (No Response) CaO → (No Response) CO2 + (No Response) CaS

(b) How many moles of CO2 can be obtained from the reaction of 4 moles of CS2?
(No Response)

(c) How many moles of CaO are consumed if 0.3 mole CS2 reacts?
(No Response) moles

(d) How many grams of CaS are produced if 53 g of CO2 are produced?
(No Response) g

(e) How many grams of CaO are required to react completely with 38 g of CS2?
(No Response) g
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