WebAssign

Thursday, September 2, 2010 10:36 EDT

Logged in as demo@demo

Log out

Daub and Seese - Basic Chemistry 7e (Homework)

James Finch

Chemistry - College, section 1, Fall 2011

Instructor: Dr. Friendly

Current Score : 0 / 21

Due : Wednesday, September 7, 2011 08:00 EDT

Print Assignment
Question
Points
1 2 3 4 5
0/6 0/1 0/8 0/4 0/2
Total
0/21

  • Description

    Here are some textbook questions from Basic Chemistry 7/e by Daub and Seese 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.

Assignment Submission

For this assignment, the number of submissions for each answer box is counted independently. The number of submissions remaining changes only if you submit a new or changed answer.

1. –/6 points Notes Question: DSchem7 3.P.003.
Question part
Points
Submissions
1 2 3 4 5 6
0/1 0/1 0/1 0/1 0/1 0/1
0/50 0/50 0/50 0/50 0/50 0/50
Total
0/6
 
Classify the following as existing in one of the three physical states of matter at room temperature and atmospheric pressure.
(a) table salt

(b) antifreeze

(c) water vapor

(d) gasoline

(e) paper

(f) oxygen
Your work in question(s) will also be submitted or saved.
2. –/1 points Notes Question: DSchem7 5.P.007.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
Given are the electronic configurations for four elements. Pair the elements you would expect to show similar chemical properties. (Select all that apply.)
(a) 1s2, 2s2 2p6, 3s2 3p5 3d7, 4s2
(b) 1s2, 2s2 2p2
(c) 1s2, 2s2 2p6, 3s2 3p6 3d10, 4s2 4p6 4d7, 5s2
(d) 1s2, 2s2 2p6, 3s2 3p2


Your work in question(s) will also be submitted or saved.
3. –/8 points Notes Question: DSchem7 7.P.018.
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
 
Write the correct formula for the "principal" chemical ingredient in each of the following. (Type your answer using the format CO2 for CO2.)
(a) baking soda
Answer is case sensitive.
 		(b) vinegar
Answer is case sensitive.
(c) natural gas
Answer is case sensitive.
 		(d) dry ice
Answer is case sensitive.
(e) quicklime
Answer is case sensitive.
 		(f) laughing gas
Answer is case sensitive.
(g) table salt
Answer is case sensitive.
 		(h) sugar
Answer is case sensitive.

Your work in question(s) will also be submitted or saved.
4. –/4 points Notes Question: DSchem7 12.P.013.
Question part
Points
Submissions
1 2 3 4
0/1 0/1 0/1 0/1
0/50 0/50 0/50 0/50
Total
0/4
 
Use the graph in Figure 12.4 to determine the following.


Figure 12.4

(a) The boiling point of alcohol at 300 mm Hg (torr).
Enter a number.
°C
(b) The boiling point of heptane on top of Mt. Whitney, California (14,495 ft); atmospheric pressure is approximately 435 mm Hg (torr).
Enter a number.
°C
(c) The boiling point of water on top of Mt. Everest, Nepal-Tibet border (29,028 ft); atmospheric pressure is approximately 240 mm Hg (torr).
Enter a number.
°C
(d) The boiling point of heptane on top of Mt. Everest.
Enter a number.
°C

Your work in question(s) will also be submitted or saved.
5. –/2 points Notes Question: DSchem7 15.P.029.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
Rain water has a pH of 4.00. Calculate its hydrogen ion concentration in mol/L.
WebAssign will check your answer for the correct number of significant figures.
Enter a number with the correct number of significant figures.
 mol/L
Explain why the water is acidic instead of neutral.

Your work in question(s) will also be submitted or saved.
Home My Assignments