Mole conversions

Front

What is the molar mass of (NH₄)₂CO₃?

Back

96 g/mol

Front

How many moles are in 16.94g of water?

Back

0.9401 mol H₂O

Front

How many moles are in 19.82 g of Mg?

Back

0.8156 mol Mg

Front

What is the number of moles in 15.0 g of arsenic trihydride?

Back

0.19 mol

Front

How many atoms are contained in a 456 g sample of carbon dioxide?

Back

1.871 x 10²⁵ atoms

Front

Define molar mass.

Back

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

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 calculate the number of moles from mass?

Back

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

Front

What is the formula to find the number of atoms in a sample?

Back

Number of atoms = moles x Avogadro's number.

Front

What is the molar mass of water (H₂O)?

Back

18 g/mol.