Stoichiometry moles to mass

Front

What is a mole?

Back

A counting term describing a large number of things.

Front

What is the molar mass for water (H2O)?

Back

18.02 g/mol.

Front

What is the molar mass for oxygen gas (O2)?

Back

32 g/mol.

Front

What is the conversion factor between mole and grams?

Back

1 gram of the substance = molar mass of the substance.

Front

When balancing a reaction, what can we change?

Back

We can change the coefficients.

Front

What is the definition of molar mass?

Back

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

Front

How do you calculate the number of moles from mass?

Back

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

Front

What is Avogadro's number?

Back

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

Front

What is the relationship between moles and molecules?

Back

1 mole of any substance contains 6.022 x 10^23 molecules.

Front

How do you convert moles to grams?

Back

Grams = moles x molar mass.