You have a 0.51 M solution of hydrofluoric acid (HF). When equilibrium is reached, the pH of the solution is 1.93. What is the percent ionization for this weak acid? Provide your answer to the nearest 0.1% without any units (do not enter "%" symbol).

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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.