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Is the molar mass of SiO2 60 g/mol (I took the molar mass of Silicon-28, and added Oxygen's atmoic mass-16 and doubled it since it's diatomic). Thanks for checking my work.

  • Chemistry -

    60.084 if you add in the decimals from the periodic table. The atomic mass of Si is not exactly 28 and O is not exactly 16 because of isotopes. Also, oxygen in the elemental state can be referred to as being diatomic; however, I wouldn't use that term in SiO2 because the oxygen atoms are not attached to each other.

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