Atoms to mole

Front

What is the conversion factor used when converting particles to moles?

Back

To convert particles to moles, you use Avogadro's number (6.02 x 10^23 particles/mole).

Front

What is Avogadro's number?

Back

Avogadro's number is 6.02 x 10^23, which is the number of atoms, molecules, or particles in one mole of a substance.

Front

How do you calculate the number of atoms from moles?

Back

Multiply the number of moles by Avogadro's number (6.02 x 10^23).

Front

If you have 1 mole of a substance, how many particles do you have?

Back

You have 6.02 x 10^23 particles.

Front

What do you need on the bottom of the conversion factor if you have particles on top?

Back

You need 'moles' on the bottom.

Front

What do you need on the bottom of the conversion factor if you have moles on top?

Back

You need 'particles' on the bottom.

Front

How many moles are in 12.04 x 10^23 atoms of carbon?

Back

2 moles (12.04 x 10^23 atoms / 6.02 x 10^23 atoms/mole = 2 moles).

Front

What is the relationship between moles and grams?

Back

To convert moles to grams, multiply the number of moles by the molar mass of the substance.

Front

How do you find the molar mass of a compound?

Back

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

Front

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

Back

You have 175.5 grams (3 moles x 58.5 g/mole).