Mastering Molar Mass

18.015 g/mol

20.02 g/mol

16.00 g/mol

22.99 g/mol

Add the atomic masses of 1 carbon atom and 2 oxygen atoms

Multiply the atomic mass of carbon by 2 and add to the atomic mass of oxygen

Add the atomic masses of 2 carbon atoms and 1 oxygen atom

Multiply the atomic mass of oxygen by 2 and subtract from the atomic mass of carbon

58.44 g/mol

35.45 g/mol

22.99 g/mol

40.00 g/mol

Add the molar masses of Mg, S, O, and H separately and then multiply by 7

Calculate the molar mass of MgSO $$_4$$ and add the molar mass of 7 water molecules

Multiply the molar mass of MgSO $$_4$$ by 7

Add the molar masses of Mg, S, and 4 O atoms, then separately calculate the mass of 7 H $$_2$$ O molecules and add them together

180.16 g/mol

342.30 g/mol

154.17 g/mol

198.17 g/mol

17.034 g/mol

18.038 g/mol

15.034 g/mol

17.031 g/mol

It is the sum of the atomic masses of all atoms in a molecule, measured in kilograms

It is the sum of the atomic masses of all atoms in a molecule, measured in grams per mole

It only considers the heaviest atom in the compound for calculation

It is always equal to the atomic mass of the element with the highest electronegativity in the compound

100.09 g/mol

40.08 g/mol

60.01 g/mol

44.01 g/mol

Add twice the molar mass of NH $$_3$$ to the molar mass of SO $$_4$$

Add the molar masses of 2 N atoms, 8 H atoms, 1 S atom, and 4 O atoms

Multiply the molar mass of NH $$_3$$ by 4 and then add to the molar mass of SO $$_3$$

Add the molar mass of N $$_2$$ H $$_4$$ to that of SO $$_4$$

158.03 g/mol

119.02 g/mol

194.19 g/mol

174.11 g/mol