Mole concept

Front

What is the molar mass of CO₂?

Back

44.0 g/mol

Front

How many molecules are in 1 mole of any substance?

Back

6.02 x 10²³ molecules

Front

What is the relationship between moles and molecules?

Back

1 mole of any substance contains 6.02 x 10²³ molecules.

Front

What is the molar mass of an element?

Back

The mass of one mole of that element in grams.

Front

How many atoms are in 1 mole of an element?

Back

6.02 x 10²³ atoms.

Front

What is the volume of 1 mole of an ideal gas at STP?

Back

22.4 L.

Front

If you have 2 grams of helium gas, how many moles do you have?

Back

0.5 moles (since molar mass of He is 4 g/mol).

Front

What is the molar mass of water (H₂O)?

Back

18.0 g/mol.

Front

How many moles are in 36 grams of water?

Back

2 moles (since molar mass of H₂O is 18 g/mol).

Front

What is Avogadro's number?

Back

6.02 x 10²³.