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)
Answers: 3
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