Review Mole Calculations

Front

What is the molar mass of silver (Ag)?

Back

107.87 g/mol

Front

How many atoms are in one mole of any substance?

Back

6.02 x 10^23 atoms

Front

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

Back

Number of moles = mass (g) / molar mass (g/mol)

Front

How many grams are in one mole of carbon dioxide (CO2)?

Back

44.01 g

Front

What is the mass of 1 mole of iron (Fe)?

Back

55.85 g

Front

How do you convert grams to moles?

Back

Divide the mass in grams by the molar mass of the substance.

Front

What is the mass of 2.3456 moles of tungsten (W)?

Back

431.22 grams

Front

How many moles are in 28 grams of CO2?

Back

0.636 moles (28 g / 44.01 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

If you have 9.02 x 10^23 atoms of beryllium, how many grams do you have?

Back

13.5 grams (9.02 x 10^23 atoms / 6.02 x 10^23 atoms/mol * 9.0122 g/mol)