Chemistry

Moriah Bruce

6 December, 13:21

Dana wants to determine the molar mass of magnesium hydroxide, Mg (OH) 2. Which calculation should she use?

A) (atomic number of Mg) + (2 x atomic number of O) + (2 x atomic number of H)

B) 2 x (atomic number of Mg + atomic number of O + atomic number of H)

C) (molar mass of Mg) + (2 x molar mass of O) + (2 x molar mass of H)

D) 2 x (molar mass of Mg + molar mass of O + molar mass of H)