Unit 4&5 Review

Unit 4 & 5 Review

Complete this with the paper that has been provided for you.

Molar mass is the ratio between the mass and the amount of substance (measured in moles) of any sample of said compound.

Multiple Choice

What are the units for molar mass?

• grams

• amu

• grams/mole

• liters

This is how you calculate molar mass...

Subject | Subject

Some text here about the topic of discussion

Multiple Choice

How do we calculate the molar mass of H₂O?

• 2+16=18

• 1+16=17

• 2+32=34

• 1+31=32

Multiple Choice

What is the molar mass of CO₂?

• 12 g/mol

• 16 g/mol

• 32 g/mol

• 44 g/mol

Multiple Choice

Calculate the molar mass of KOH.

• 28 g/mol

• 56 g/mol

• 84 g/mol

• 112 g/mol

Multiple Choice

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

1 mol of ANYTHING=6.02x10²³ atoms

After solving the image below, describe how you got your answer ON YOUR PAPER.

Put this is your own words!

Solve the percent composition of H₂O. These are in your notes!

The EMPIRICAL FORMULA is the simplified version of your MOLECULAR FORMULA.

Some text here about the topic of discussion

​Molecular Formula	​Empirical Formula
​CO2	​CO2
​H2O	​?
​N2O4	​?
​P4O10	​P2O5
​C10H22	​?
​C8H18O3	​C2H6O