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Molecular Formula of Glucose

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The sugar glucose contains C, H, and O and has a mass of 180.0634 amu as determined by high-resolution mass spectrometry. Glucose contains an equal number of carbon and oxygen atoms. What is the molecular formula of glucose? (1H=1.00783 amu, 12C = 12.00000 amu, 16O = 15.99491 amu).

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Solution Summary

The solution determines the molecular formula of glucose.

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    Now the moles of Glucose needed is M = (1.00)(10^3)/2802.5 = 0.3568

    Mass of Glucose m = (180g/mole) x 0.3568 mole = 64.23 g (Ans)

    180 is the molecular weight of glucose.

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