Formula Mass, Moles, and Molar Mass

Front

What is the definition of molar mass?

Back

Number of grams in one mole of a substance.

Front

How many moles are in 22 g of argon?

Back

0.55 moles.

Front

Calculate the molar mass of KOH.

Back

56 g/mol.

Front

How many moles are in 50 g of NaCl?

Back

0.86 moles.

Front

What is the molar mass of H₂SO₄?

Back

98 g/mol.

Front

What is the formula to calculate moles?

Back

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

Front

What is Avogadro's number?

Back

6.02 x 10²³ particles per mole.

Front

How do you convert grams to moles?

Back

Divide the mass in grams by the molar mass.

Front

What is the molar mass of NaCl?

Back

58.5 g/mol.

Front

If you have 2 moles of a substance, how many grams do you have if the molar mass is 18 g/mol?

Back

36 grams.