Calculate the mass of forsterite Mg2SiO4 that contains a million ×1.00106 oxygen atoms. Be sure your answer has a unit symbol if necessary, and round it to 3 significant digits.

5.84x10⁻¹⁷ g

Explanation:

First we convert oxygen atoms into oxygen moles, using Avogadro's number:

Now we convert oxygen moles into forsterite moles, using forsterite's molecular formula:

Finally we convert forsterite moles into grams using its molecular weight:

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