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For 1200 ML of a Buffer That Is 0

Question 154

Multiple Choice

For 120.0 mL of a buffer that is 0.40M in HOCl and 0.42 M in NaOCl, what is the pH after 17.5 mL of 1.1 M NaOH is added? Ka for HOCl = 3.5 × 10-8. (Assume the volumes are additive.)


A) 7.12
B) 7.48
C) 7.43
D) 7.07
E) 7.84

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