Free Printable Mole Conversion Practice Problems (Elements)

Worksheets

Mole Conversion Practice Problems (Elements)

Total questions: 20

Worksheet time: 2hrs 36mins

Name

Class

Date

How many moles are in 16.94 g of water?

16.94 mol H₂O

0.9401 mol H₂O

305.3 mol H₂O

1.063 mol H₂O

How many moles of magnesium are in 3.01x10²² atoms of magnesium?

5.00x10⁴⁴ moles Mg

0.0500 moles Mg

1.81x10⁴⁶ moles Mg

5.00 moles Mg

How many grams of carbon are in 0.63 moles of carbon?

3.79x10²³ g C

.0524 g C

7.57 g C

.800 g C

How many moles of copper are present in a sample that contains 4.57 x 10¹³ atoms of copper?

7.59 x 10^-11 moles

2.75 x 10³⁷ moles

7.59 x 10¹¹ moles

2.75 x 10³³ moles

How many grams are in 1.2 moles of neon?

0.059 grams

7.2 x 10²³ grams

2.0 x 10^-24 grams

24 grams

You have 8.65 x 10²⁵ atoms of arsenic. How many grams do you have?

144 g As

10,765 g As

107 g As

None of these

What is the mass of one mole of silver?

32.06 g

107.87 g

14.01 g

22.99 g

What is the mass of 4.98 x 10²⁴atoms of Zn?

541 g

8.27 g

.122 g

4.59 x 10⁴⁶ g

Which has more atoms, 12.0 mol of C or 12.0 mol of Ca?

12.0 mol C

12.0 mol Ca

They are equal

10.

What is the volume of 78.6 moles of liquid nitrogen?

1,348.4 L

1,348.5 L

1,760.6 L

1,760.7 L

11.

How many moles are in 17 liters of fluorine?

380.8 moles

390.8 moles

.76 moles

.86 moles

12.

How many moles are in 848 liters of titanium?

37.9 moles

43.8 moles

57.9 moles

63.8 moles

13.

The mass of one mole of an element is equal to

its atomic number from the periodic table, but in amus.

its atomic mass from the periodic table, but in amus.

its atomic mass from the periodic table, but in grams.

its atomic number from the periodic table, but in grams.

14.

The number 6.02 x 10²³ is called...

Obama's number

Bohr's number

Trump's number

Avogadro's number

15.

Find the mass of 3.6 mol of Au.

843.6 g

709.2 g

435.9 g

196.9 g

16.

In chemistry, a "mole" is:

The mass of an atom

a large number used to count particles

based on the volume of a substance

17.

We use the periodic table to calculate...

mass

molar mass

moles

18.

You have two sealed flasks. The first flask contains 22.99 grams of solid sodium (Na). The second flask contains 200.59 grams of liquid mercury (Hg). Which flask has more moles of the indicated substance?

The first flask

The second flask

Neither.

19.

How many moles of Francium (Fr) are in 7.4 x 10²⁶ atoms?

1.23 moles

44.56 x 10⁴⁹ moles

87 moles

1.23 x 10³ moles Fr

20.

A tube with a volume of 156 L contains how many moles of Helium?

58.6934 mol

3494.4 mol

6.964 mol

2.6579 mol

100 %

Mole Conversion Practice Problems (Elements)

Total questions: 20

Worksheet time: 2hrs 36mins

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