What is the empirical formula of a 212.1g sample of a compound that contains 42.4g H and 169.7g C? What is the molecular formula of the compound having a molecular mass of 30.0g?

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a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.