Chem 1 Quiz 1 Post Lab

Topics: Volume, Sphere, Cylinder Pages: 4 (372 words) Published: March 17, 2015
Question 1
1 out of 1 points

The volume of a regular cylinder is V = πr2h. Using the value 3.1416 for the constant π, the volume (cm3) of a cylinder of radius 2.34 cm and height 19.91 expressed to the correct number of significant figures is _________.

Selected Answer:
d. 
342
Correct Answer:
d. 
342

Response Feedback:
Correct

Question 2
1 out of 1 points

There are ____________ significant figures in the answer to the following computation: (29.2 - 20.0 ) (1.79 x 105)
                  1.39

Selected Answer:
c. 
2
Correct Answer:
c. 
2

Response Feedback:
Correct

Question 3
1 out of 1 points

The number 0.00430 has _____________ significant figures.

Selected Answer:
a. 
3
Correct Answer:
a. 
3

Response Feedback:
Correct

Question 4
1 out of 1 points

Of the following, ________________ is the smallest mass.

Selected Answer:
b. 
2.5 x 109 fg
Correct Answer:
b. 
2.5 x 109 fg

Response Feedback:
Correct

Question 5
1 out of 1 points

A temperature of ______________ K is the same as 63.0 ºF.

Selected Answer:
d. 
290
Correct Answer:
d. 
290

Response Feedback:
Correct

Question 6
1 out of 1 points

3.337 g/cm3 = ___________ kg/m3

Selected Answer:
a. 
3337
Correct Answer:
a. 
3337

Response Feedback:
Correct

Question 7
1 out of 1 points

How many significant figures should be retained in the result of the following calculation? (12.00000 x 0.9893) + (13.00335 x 0.0107)

Selected Answer:
b. 
4
Correct Answer:
b. 
4

Response Feedback:
Correct

Question 8
1 out of 1 points

The density of silver is 10.5 g/cm3.  A piece of silver that occupies a volume of 23.6 cm3 would have a mass of _______________g.

Selected Answer:
c. 
248
Correct Answer:
c. 
248

Response Feedback:
Correct

Question 9
1 out of...
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