What is the molar mass of Calcium Chloride (CaCl2) (to the nearest

tenth!)?

111.1g/mol

If you have exactly one mole each of Carbon Monoxide and Carbon

Dioxide, which has a greater mass?

Which has greater quantity of molecules??

CO2

Same!

Conversions with Moles

MOLE MASS# of

Representative Particles

Need to use:

Avogadro’s

Number

6.02X1023

Need to use:Molar Mass

(from Periodic Table)

Avogadro’s Number

Molar Mass

Both

How many atoms in 0.250mol of Silver?

Avogadro’s Number

Molar Mass

Both

If you have 30g of H3PO4, how many

moles is that?

Avogadro’s Number

Molar Mass

Both

How many moles are in 3.4X1026 atoms of Gold?

Avogadro’s Number

Molar Mass

Both

How many molecules in 1.2mol

of Nitrogen?

Avogadro’s Number

Molar Mass

Both

How moles in 1.1g of FeCl3?

Avogadro’s Number

Molar Mass

Both

What is the mass of 3.2mol H2O?

Avogadro’s Number

Molar Mass

Both

How many molecules of water

are in 36.0g of water?

Avogadro’s Number

Molar Mass

Both

How many moles in 564g of Copper?

Avogadro’s Number

Molar Mass

Both

How many atoms in 564g of Copper?

Avogadro’s Number

Molar Mass

Both

How many grams in 4moles of Cu(CN)2?

Avogadro’s Number

Molar Mass

Both

How many moles in 89grams of Lead

(IV) Acetate?

Avogadro’s Number

Molar Mass

Both

What is the mass of 2.3X1024 atoms of

silver?

Avogadro’s Number

Molar Mass

Both

How many moles in 8.9X1025 molecules

of carbon tetrachloride?

Avogadro’s Number

Molar Mass

Both

Mass of 0.425mol N2?

Avogadro’s Number

Molar Mass

Both

How many grams in 9.03X1023 atoms of

Calcium?

Avogadro’s Number

Molar Mass

Both

What is the mass of 3.0mol water?

Avogadro’s Number

Molar Mass

Both

2mol of Fe is how many atoms?

Avogadro’s Number

Molar Mass

Both

207g of Fe is how many atoms?

Avogadro’s Number

Molar Mass

Both

1.204X1024 formula units of sodium

chloride has what mass?

Avogadro’s Number

Molar Mass

Both

102g of CO2 = ?mol