McMurry et al - Fundamentals of GOB 5/e (Homework)

Chris Read

Prentice Hall, section 1, Fall 2010

Instructor: Mr. Prentice Hall

Current Score : 0 / 22

Due : Tuesday, November 9, 2010 08:00 PM EST

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Description

Here are some textbook questions from Fundamentals of General, Organic, and Biological Chemistry 5/e by John McMurry, Mary Castellion, and David Ballantine published by Prentice Hall. Click here for a list of all of the questions coded in WebAssign.

Instructions

This demo assignment allows many submissions and allows you to try another version of the same question for practice.

1. –/5 points Notes Question: MCGOB5 1.P.027.

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Which of these terms applies to the following substances at room temperature? (Select all that apply.)

(a) chromium 1 mixture solid liquid gas chemical element chemical compound	(b) bromine 2 mixture solid liquid gas chemical element chemical compound
(c) motor oil 3 mixture solid liquid gas chemical element chemical compound	(d) nitrous oxide 4 mixture solid liquid gas chemical element chemical compound
(e) gasoline 5 mixture solid liquid gas chemical element chemical compound

2. –/4 points Notes Question: MCGOB5 2.P.045.

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Convert the following numbers from scientific notation to standard notation.

(a) 4.82

10³

(b) 5.525

10⁶

(c) 2.555

10^-3

(d) 3.58

10⁴

3. –/8 points Notes Question: MCGOB5 6.P.063.

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At elevated temperatures in an automobile engine, N₂ and O₂ can react to yield NO, an important cause of air pollution.

(a) Write a balanced equation for the reaction. (Type your answer using the format CO2 for CO₂. Use the lowest possible coefficients.)
N₂(g) + (g)

(g)
(b) How many moles of N₂ are needed to react with 7.90 mol of O₂?

WebAssign will check your answer for the correct number of significant figures.

mol
(c) How many moles of NO can be formed when 3.73 mol of N₂ reacts?

mol
(d) How many moles of O₂ must react to produce 0.180 mol of NO?

mol

4. –/3 points Notes Question: MCGOB5 8.P.029.

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What is the partial pressure of each gas -- red, yellow and green -- if the total pressure inside the following container is 611 mm Hg?

P_red

mm Hg
P_yellow

mm Hg
P_green

mm Hg

5. –/1 points Notes Question: MCGOB5 11.P.065.

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Match each unit in the left-hand column with the property being measured in the right-hand column.

	rad	1. amount of tissue damage
	curie	2. amount of radiation per gram of tissue
	roentgen	3. number of disintegrations per second
	sievert	4. ionizing intensity of radiation

6. –/1 points Notes Question: MCGOB5 12.P.046.

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What is wrong with the following structure? (Select all that apply.)

one of the carbons has 5 bonds one of the carbons only has 3 bonds the bond between the carbon and the hydroxide should be a single bond the bond between the carbon and the oxygen should be a double bond

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McMurry et al - Fundamentals of GOB 5/e (Homework)

Current Score : 0 / 22