Question 1

What is the goal of dimensional analysis?

Accepted Answer

to convert from one unit to another

Answer

to always multiply the given by the same number no matter what

Answer

to cause suffering among chemistry students

Answer

to change the value of the number but keep the units the same

Question 2

What is a conversion factor, like 12 in/1 ft, equal to?

Accepted Answer

1

Answer

0

Answer

2

Answer

10

Question 3

How do you know how to arrange conversion factors, like 1 day/24 hr?

Accepted Answer

cancel the units of the given, like 3 days * 24 hr/1 day (day is on bottom)

Answer

it doesn't matter what part of the conversion factor is top or bottom

Answer

flip a coin and hope you're correct

Answer

cancel the units of the given, like 3 days * 1 day/24 hr (day is on top)

Question 4

How many grams are in 0.143 oz? (1 oz/28.35 g)

Accepted Answer

4.05 g

Answer

0.00504 g

Answer

5.62 g

Answer

28.493 g

Question 5

A person weighs 54 kg. How much do they weigh in lb? (1 kg/2.2 lb)

Accepted Answer

119 lb

Answer

134 lb

Answer

115 lb

Answer

99 lb

Question 6

TopGolf is 8.4 km away. How many miles do you have to drive there? (1 km/0.62 mi)

Accepted Answer

5.2 mi

Answer

13.5 mi

Answer

4.5 mi

Answer

6.3 mi

Question 7

The density of gold is 19.32 g/mL. If you have a liter of gold, how much would it weigh in grams?

Accepted Answer

1,932 g

Answer

193.2 g

Answer

19,320 g

Answer

3,858 g

Question 8

In chemistry, what is a mole?

Accepted Answer

a way to count molecules or atoms

Answer

a way to count donuts

Answer

a burrowing animal

Answer

it has an equal mass for all elements

Question 9

A mole of one chemical compound has a number of particles equal to Avogadro's number, which is...

Accepted Answer

6.02*10^23

Answer

7.05*10^23

Answer

6.02*10^25

Answer

6.02*10^-23

Question 10

How many atoms are in 2.5 mol of chromium?

Accepted Answer

1.5*10^24 atoms Cr

Answer

8.2*10^22 atoms Cr

Answer

3.0*10^23 atoms Cr

Answer

1.2*10^24 atoms Cr

Question 11

How many atoms are in 5.40 mol of palladium?

Accepted Answer

3.25*10^24 atoms Pd

Answer

4.21*10^24 atoms Pd

Answer

2.71*10^24 atoms Pd

Answer

1.81*10^24 atoms Pd

Question 12

How many moles are in 8.5*10^21 atoms of silver?

Accepted Answer

0.014 mol Ag

Answer

0.056 mol Ag

Answer

0.0014 mol Ag

Answer

0.028 mol Ag

Question 13

How many moles are in 4.3*10^24 atoms of mercury?

Accepted Answer

7.1 mol Hg

Answer

9.5 mol Hg

Answer

2.2 mol Hg

Answer

6.2 mol Hg

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