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Complete combustion of 7.00 g of a hydrocarbon produced 21.4 g of CO2 and 10.2 g of H2O. What is the empirical formula for the hydrocarbon?

  • Chemistry -

    Convert 21.4g CO2 to g C and subtract that number from 7.00 g to find g H.
    mols C = g/atomic mass
    mols H = g/atomic mass
    Then find the ratio of the elements to each other. Post your work if you get stuck.

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