Mole Wheel Conversions

1.

Multiple Choice

1 min

1 pt

(0901) Avogadro’s number is:

6.02 x 10²²

6

6.02 x 10²³

3.01 x 10²³

2.

Multiple Choice

3 mins

1 pt

(0901) Determine the number of moles in 5.2 x 10²² atoms of gold.

0.086 mole

0.52 mole

8.63 x 10⁴⁴ moles

3.1 x 10⁴⁶ moles

3.

Multiple Choice

3 mins

1 pt

(0901) How many water molecules are in 5.2 moles of water?

6.0 x 10²³ molecules

5.2 molecules

3.1 x 10²⁴ molecules

8.6 x 10^-24 molecules

4.

Multiple Choice

1 min

1 pt

(0902) The mass of one mole of substance is called...

molecular mass

mole constant

molar mass

atomic weight

5.

Multiple Choice

3 mins

1 pt

(0902) What is the molar mass of Ca(NO₃)₂?

148.096 g

164.086 g

102.055 g

70.084 g

6.

Multiple Choice

3 mins

1 pt

(0903) Determine how many grams are in 0.36 moles of CCl₄.

150 g

55 g

0.0023 g

2.2 g

7.

Multiple Choice

3 mins

1 pt

(0903) If you want 1.55 moles of nitrogen trichloride, how many grams should you measure out?

0.0129 g

120. g

187 g

9.33 g

8.

Multiple Choice

5 mins

1 pt

(0904) How many atoms would be contained in 454 grams of iron?

6.02 x 10²³ atoms

8.14 atoms

4.89 x 10²⁴ atoms

55.9 x 10²³ atoms

9.

Multiple Choice

5 mins

1 pt

(0904) How many molecules are present in 25 g of O₂?

32. molecules

0.78 molecules

4.7x10²³ molecules

1.3 x 10²³ molecules

10.

Multiple Choice

1 min

1 pt

How many steps are in a gram to mole conversion?

1

2

3

4

11.

Multiple Choice

1 min

1 pt

What are the units for molar mass?

grams

amu

grams/mole

liters

12.

Multiple Choice

1 min

1 pt

How many steps are in a gram to molecule conversion?

1

2

3

4

13.

Multiple Choice

5 mins

1 pt

What would be the mass of 9.76 x 10²² formula units of SrCl₂?

.1622 g

25.7 g

20.0 g

.3589 g

14.

Multiple Choice

2 mins

1 pt

Which conversion factor should be used to solve the following, "How many moles of argon atoms are present in 11.2 L of argon gas at STP?"

1 mol = 22.4 L

1 mol = 39.95 g

1 mol = 6.02x10²³ atoms

More than 1

15.

Multiple Choice

1 min

1 pt

Mole in Chemistry is a(an)_______.

unit

animal

number equals to 6.02

number equals to 12

16.

Multiple Choice

1 min

1 pt

Why do we use moles?

We want to use a lot of chemicals.

We want to count chemicals using its mass.

We have the technology to count atoms one by one.

We like little cute animals.

17.

Multiple Choice

3 mins

1 pt

A container with a volume of 893 L contains how many moles of air at STP?

20003.2 L

39.9 L

22.4 L

none of the choices

Explore this activity with a free account