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5 February, 22:35

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)

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Answers (1)
  1. 5 February, 22:56
    0
    Answer C. is correct:

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

    :-); - )
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