Mole Conversions RVHS

Front

What is the mole used for?

Back

To measure the amount of atoms or molecules in a substance.

Front

What is the mass of one mole of a substance called?

Back

Molar mass.

Front

How many atoms are in 1 mole of NaCl?

Back

6.02 x 10^23.

Front

What percentage of the total atomic mass of magnesium bromide (MgBr2) is composed of magnesium?

Back

13.20%.

Front

What is the mass of 0.89 mol of CaCl2?

Back

99 grams.

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

6.02 x 10^23, the number of atoms or molecules in one mole of a substance.

Front

How do you calculate the molar mass of a compound?

Back

By summing the atomic masses of all the atoms in the compound's formula.

Front

What is the formula to convert moles to grams?

Back

Mass (g) = Moles x Molar Mass (g/mol).

Front

What is the significance of the mole in chemistry?

Back

It provides a bridge between the atomic and macroscopic worlds, allowing chemists to count particles by weighing them.