18. Aqueous Equilibrium
Henderson-Hasselbalch Equation
Multiple Choice
Multiple ChoiceCalculate mass of NaN3 that needs be added to 1.8 L of 0.35 M HN3 in order to make a buffer with a pH of 6.5. Ka of hydrazoic acid is 1.9 × 10−5.
A
1.4 g NaN3
B
1.0 × 10−2 g NaN3
C
2.5 × 103 g NaN3
D
3.55 g NaN3
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