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chem

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How many oxygen atoms are in 1.90g og quartz (SiO2)?

ok so 1.90g SiO2(1mol/60.0843g SiO2)(2 O mols/1 mol SiO2) (6.022*10^23atoms/1mol) what am i doing wrongg???

  • chem -

    It looks ok to me. Perhaps you just punched it in the calculator wrong. My calculator says 3.76E22 but check that.

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