Molar Conversions

Front

What is the mass of 1 mole of oxygen gas (O₂)?

Back

32.0 g

Front

What is the relationship between moles and molecules?

Back

1 mole of any substance contains 6.022 x 10²³ molecules.

Front

What is Avogadro's number?

Back

6.022 x 10²³, the number of particles in one mole of a substance.

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 molar mass of carbon (C)?

Back

12.0 g/mol

Front

How many moles are in 24 grams of carbon (C)?

Back

2 moles (24 g ÷ 12 g/mol = 2 moles).

Front

What is the mass of 0.25 moles of water (H₂O)?

Back

4.5 g (0.25 moles x 18 g/mol = 4.5 g).

Front

How many atoms are in 1 mole of sulfur (S)?

Back

6.022 x 10²³ atoms.

Front

What is the molar mass of methane (CH₄)?

Back

16.0 g/mol

Front

If you have 3 moles of sodium chloride (NaCl), how many grams do you have?

Back

176.4 g (3 moles x 58.44 g/mol = 176.4 g).