Consider the following three titrations: – A ti…


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20.50

Consider the following three titrations: – A titration of 25.0 mL of a 0.100 M weak acid (Ka = 1.2 x 10-7) with 0.100 M NaOH. – A titration of 25.0 mL of a 0.100 M weak acid (Ka = 1.9 x 10-4) with 0.100 M NaOH. – A titration of 25.0 mL of a 0.100 M strong acid with 0.100 M NaOH. Which statement(s) is/are correct? 1) All three titration solutions have the same initial pH 2) All three titrations require the same volume of NaOH to reach the equivalence point. 3) All three solutions have the same pH at the equivalence point. 4) The pH at the equivalence point increases from the first to the second to the third titration. a) 1 b) 2 c) 3 d) 4 e) 1 and 4 f) 2 and 4

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20.50