Multiple Choice
In an acid-base titration, how is the pH at the beginning of the titration determined?
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Consider the titration of 60.0 mL of 0.200 M H3PO3 solution with 0.350 M potassium hydroxide, KOH solution. How many milliliters of base would be required to reach each of its equivalence points?
Consider the titration of 100.0 mL of 0.40 M HCl with 0.40 M NaOH. If sodium hydroxide is the titrant, which volume would place it in excess?
a) 70.0 mL b) 25.0 mL c) 100.0 mL d) 110.0 mL e) 9.0 mL
What will be the color of the indicator in the above question in a solution that has a pH of 6?
Chlorous acid: pKa = 1.95
Nitrous acid: pKa = 3.34
Formic acid: pKa = 3.74
Acetic acid: pKa = 4.74
Hypochlorous acid: pKa = 7.54