Multiple Choice
What mass of sodium fluoride must be added to 250. mL of a 0.100 M HF solution to give a buffer solution having a pH of 3.50 [Ka(HF) = 7.1* 10-4]
A) 0.49 g
B) 1.5 g
C) 3.4 g
D) 2.3 g
E) 0.75 g
Correct Answer:
Verified
Correct Answer:
Verified
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