Unit 3 Review

Front

What is the mass of 0.89 mol of CaCl2?

Back

98.77 grams

Front

How many moles of FeCl3 are in 3.0 x 10^24 formula units of FeCl3?

Back

5.0 moles

Front

The mass of one mole of substance is called...

Back

molar mass

Front

0.02 moles of potassium atoms has a mass of...

Back

0.782 g

Front

How many atoms are in 1.00 mole of Au?

Back

6.02 x 10^23

Front

What is the formula to calculate the number of moles from mass?

Back

Moles = Mass (g) / Molar Mass (g/mol)

Front

What is Avogadro's number?

Back

6.02 x 10^23, the number of particles in one mole of a substance.

Front

Define molar mass.

Back

The mass of one mole of a substance, typically expressed in grams per mole (g/mol).

Front

How do you convert moles to grams?

Back

Multiply the number of moles by the molar mass of the substance.

Front

What is the relationship between moles and molecules?

Back

1 mole of any substance contains 6.02 x 10^23 molecules.