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

James Finch

Chemistry - College, section 1, Fall 2010

Instructor: Dr. Friendly

Current Score: 9/22

Due: Monday, November 8, 2010 08:00 EST

Question

Points

1	2	3	4	5	6
5	4	0/8	0/3	0/1	0/1

Total

9/22

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. 5/5 points All Submissions Notes Question: MCGOB5 1.P.027.

Question part

Points

Submissions

1	2	3	4	5
1	1	1	1	1
2/50	1/50	2/50	1/50	2/50

Total

5/5

2. 4/4 points All Submissions Notes Question: MCGOB5 2.P.045.

Question part

Points

Submissions

1	2	3	4
1	1	1	1
2/50	2/50	2/50	2/50

Total

4/4

Convert the following numbers from scientific notation to standard notation.

(a) 4.79

10³

(b) 5.506

10⁶

10^-3

(d) 3.73

10⁴

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

Question part

Points

Submissions

1	2	3	4	5	6	7	8
0/1	0/1	0/1	0/1	0/1	0/1	0/1	0/1
0/50	0/50	0/50	0/50	0/50	0/50	0/50	0/50

Total

0/8

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 7.60 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 3.85 mol of N₂ reacts?

mol
(d) How many moles of O₂ must react to produce 0.270 mol of NO?

mol

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

Question part

Points

Submissions

1	2	3
0/1	0/1	0/1
0/50	0/50	0/50

Total

0/3

What is the partial pressure of each gas -- red, yellow and green -- if the total pressure inside the following container is 608 mm Hg?

P_red

mm Hg
P_yellow

mm Hg
P_green

mm Hg

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

Question part

Points

Submissions

1
0/1
0/50

Total

0/1

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

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

6. 0/1 points All Submissions Notes Question: MCGOB5 12.P.046.

Question part

Points

Submissions

1
0/1
1/50

Total

0/1

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

Your answer is incorrect.

(a) copper 1 mixture solid liquid gas chemical element chemical compound	(b) carbon dioxide 2 mixture solid liquid gas chemical element chemical compound
(c) chromium 3 mixture solid liquid gas chemical element chemical compound	(d) motor oil 4 mixture solid liquid gas chemical element chemical compound
(e) nitrogen 5 mixture solid liquid gas chemical element chemical compound

WebAssign

Logged in as demo@demo

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

Current Score: 9/22