Multiple Choice
What mass of sodium cyanide must be added to 250.mL of water in order to obtain a solution having a pH of 10.50? [Ka(HCN) = 4.9 × 10-10]
A) 240 g
B) 0.032 g
C) 0.059 g
D) 0.94 g
E) 0.24 g
Correct Answer:
Verified
Correct Answer:
Verified
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