Single Step Mole Conversions

Front

What is the mass of 1 mole of an element?

Back

The mass of 1 mole of an element is equal to its atomic mass from the periodic table, but in grams.

Front

How do you convert moles to grams?

Back

To convert moles to grams, multiply the number of moles by the molar mass of the substance (in g/mol).

Front

What is the molar mass of CaCl2?

Back

The molar mass of CaCl2 (Calcium Chloride) is approximately 110.98 g/mol.

Front

How many grams are in 0.89 moles of CaCl2?

Back

To find the mass, multiply 0.89 moles by the molar mass (110.98 g/mol): 0.89 x 110.98 = 98.9 grams.

Front

What is Avogadro's number?

Back

Avogadro's number is 6.022 x 10^23, which is the number of atoms, ions, or molecules in one mole of a substance.

Front

How do you convert grams to moles?

Back

To convert grams to moles, divide the mass of the substance (in grams) by its molar mass (in g/mol).

Front

How many moles are in 48.86 g of cobalt?

Back

To find the moles, divide the mass (48.86 g) by the molar mass of cobalt (58.93 g/mol): 48.86 g / 58.93 g/mol = 0.8291 moles.

Front

How many moles are in 3.01 x 10^22 atoms of magnesium?

Back

To find the moles, divide the number of atoms by Avogadro's number: 3.01 x 10^22 atoms / 6.022 x 10^23 = 0.05 moles.

Front

What is the relationship between moles and molecules?

Back

1 mole of any substance contains Avogadro's number (6.022 x 10^23) of molecules.

Front

What is the formula to calculate the number of moles from mass?

Back

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