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    Determining Molecular Formulas and Compounds

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    1. A 0.1014 g sample of purified glucose was burned to produce 0.1486 grams of carbon dioxide and 0.09 g of water. Glucose contains only C,H,and O. Determine the empirical formula of glucose. If the molecular mass of glucose is 180, what is the molecular formula of glucose.

    2. A granulated sample of aircraft alloy (Mg, Al, Cu) weighing 8.72 g was first treated with alkali to remove the aluminum and then with HCl(aq) to remove the magnesium, leaving a 0.9 g residue of Cu. If 6.067 g of aluminum hydroxide were recovered from the alkali treatment, what is the elemental mass percent composition of the alloy?

    3. Name the following compounds:
    a. I2O7
    b. Na3PO4
    c. Hg2(CN)2
    d. Cr2(CrO4)3
    e. MgCr04
    f. BeH2
    g. GaP
    h. Pb(C2O4)2

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    https://brainmass.com/chemistry/general-chemistry/molecular-formulas-compounds-288594

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