previous | 11 of 26 next tem 11 Part A The graphs below labeled (a) and (b) show
ID: 552717 • Letter: P
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previous | 11 of 26 next tem 11 Part A The graphs below labeled (a) and (b) show the titration curves for two equal-volume samples of monoprotic acids, one weak and one strong. Both titrations were caried out with the same concantration of strong base. What is the approximate pH at the equivalence point of (a) curve? (Figure 1) Express your answer as a whole number. Submit My Answers Givo Up Part B What is the approximate pH at the equivalence point of (b) curve?(Figure 2) Express your answer as a whole number Submit My Answers Give Up Figure Part C 14 Which curve corresponds to the titration of the strong acid and which one to the titration of the weak acid? 12 C Graph (a) represents a weak acid and graph (b) represents a strong acid. C Graph (b) represents a weak acid and graph (a) represents a strong acid Submit My Answers Give Up Provide Feedback Continue 0 20 40 60 80 100 Volume of base added (mL)Explanation / Answer
A)
in equivalence point
the pH is approx between 12 and 4, then (12+4) /2 = 8 approx
ph = 8 in equivalence
B)
this is most likely at pH = 7, since strong acid/base
c)
graph A --> weak acid + storng base
Graph B --> strong acid + strong base
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