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Consider this initial-rate data at a certain temperature for the reaction described by

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?