Name ____________________________________ Period ________ Molar Mass Worksheet Calculate the molar mass of the following compounds in g/mol. Identify whether the molar mass is a molecular mass or a formula mass in the Type field. Round all atomic masses to the nearest 0.1 g/mole. Ba(NO3)2 Type: formula mass Element Atoms Atomic mass Total Ba 1 x 137.3 = 137.3 N 2 x 14.0 = 28.0 O 6 x 16.0 = + 96.0 261.3 g/mol NaOH Type: formula mass Element Atoms Atomic mass Total Na 1 x 23.0 = 23.0 O 1 x 16.0 = 16.0 H 1 x 1.0 = + 1.0 40.0 g/mol Na2CO3 Type: formula mass Element Atoms Atomic mass Total Na 2 x 23.0 = 46.0 C 1 x 12.0 = 12.0 O 3 x 16.0 = + 48.0 106.0 g/mol CaCl2 Type: formula mass Element Atoms Atomic mass Total Ca 1 x 40.1 = 40.1 Cl 2 x 35.5 = + 71.0 111.1 g/mol Al2(SO4)3 Type: formula mass Element Atoms Atomic mass Total Al 2 x 27.0 = 54.0 S 3 x 32.1 = 96.3 O 12 x 16.0 = +192.0 342.3 g/mol magnesium hydroxide Type: formula mass Element Atoms Atomic mass Total Mg 1 x 24.3 = 24.3 O 2 x 16.0 = 32.0 H 2 x 1.0 = + 2.0 58.3 g/mol Mg(OH)2 NH3 Type: molecular mass Element Atoms Atomic mass Total N 1 x 14.0 = 14.0 H 3 x 1.0 = + 3.0 17.0 g/mol CO2 Type: molecular mass Element Atoms Atomic mass Total C 1 x 12.0 = 12.0 O 2 x 16.0 = + 32.0 44.0 g/mol C6H12O6 Type: molecular mass Element Atoms Atomic mass Total C 6 x 12.0 = 72.0 H 12 x 1.0 = 12.0 O 6 x 16.0 = + 96.0 180.0 g/mol CH3OH C H O 1 4 1 x x x Type: molecular mass 12.0 = 12.0 1.0 = 4.0 16.0 = + 16.0 32.0 g/mol CH3CO2H C H O 2 4 2 x x x Type: molecular mass 12.0 = 24.0 1.0 = 4.0 16.0 = + 32.0 60.0 g/mol NH3CH2CO2H N 1 H 6 C 2 O 2 x x x x Type: molecular mass 14.0 = 14.0 1.0 = 6.0 12.0 = 24.0 16.0 = + 32.0 76.0 g/mol