Free Printable Mixed Mole conversions etc.. Day 3 HW.

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Mixed Mole conversions etc.. Day 3 HW.

Total questions: 20

Worksheet time: 29mins

Name

Class

Date

What are the units for molar mass?

grams

amu

grams/mole

liters

What is the molar mass of table salt (NaCl)?

116.886 g/mol

35.453 g/mol

22.990 g/mol

58.443 g/mol

How many steps are in a gram to molecule conversion?

How many steps are in a gram to mole conversion?

Avogadro’s number is:

6.02 x 10²²

6.02 x 10²³

3.01 x 10²³

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

Which compound has the smallest molar mass?

CO₂

H₂O

H₂O₂

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

Which represents the greatest mass of sulfur?

1 gram of sulfur

1 molecule of sulfur

0.5 mole of sulfur

6.02 x 10²³ atoms of sulfur

10.

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

11.

Which conversion factor should be used for the following question " How many molecules are there in 4.00 moles of glucose, C₆H₁₂O₆?

1 mole = 78.12 g

1 mole = 22.4 L

1 mol = 6.02x 10²³ particles

more than one

12.

Which conversion factor should be used to solve the following, "How many moles in 28 grams of CO₂?"

1 mol = 22.4 L

1 mol = 44.01 g

1 mol = 6.02x10²³ atoms

more than one

13.

Which conversion factor should be used to solve the following, "Find the mass in grams of 2.00 x 10²³ molecules of F₂."

1 mol = 22.4 L

1 mol = 38.00 g

1 mol = 6.02x10²³ atoms

more than one

14.

The unit for volume is

liters

grams

molecules

atoms

15.

When entering scientific notation numbers on your calculator you don't type in "x10". Instead you enter ____ and then the exponent

EXP

Either EE or EXP depending on your brand of calculator

16.

An Avogadro's number of water molecules is equal to all EXCEPT _________.

1 mole of water molecules

2 moles of Hydrogen atoms and 1 mole of oxygen atoms

18.02 grams of water

18.02 molecules of water

17.

88.0 grams of CO₂ is about _____________. [Select 3 answers.]

1 mole of CO₂

2 moles of CO₂

6.02 x 10²³ molecules of CO₂

two times 6.02 x 10²³molecules of CO₂

2 moles of carbon atoms and 4 moles of oxygen atoms

18.

Which of these has the greatest volume at the same temperature & pressure?

1 mole CO₂

1 mole of N₂O₄

1 mole of C₃H₈

They all have the same volume

19.

Which has more molecules?

1 mole CO₂

1 mole of N₂O₄

1 mole of H₂O

They are all the same

20.

If I have 6.02 x10²³ molecules of CO₂, what is the mass?

44.0 g

2.65 x10²³ g

1.37 x10²² g

96.0 g

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Mixed Mole conversions etc.. Day 3 HW.

Total questions: 20

Worksheet time: 29mins

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