Multiple Choice
What mass of NaF must be added to 50.0 mL of a 0.500 M HF solution to achieve a pH of 3.25? For HF, Ka = 7.2 × 10-4.
A) 1.3 g
B) 0.69 g
C) 6.9 g
D) 23 g
E) 1.5 g
Correct Answer:
Verified
Correct Answer:
Verified
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