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The Ka of Some Acid,HA,at 25

Question 13

Multiple Choice

The Ka of some acid,HA,at 25.0 °C is 4.9 × The K<sub>a</sub> of some acid,HA,at 25.0 °C is 4.9 × .What is the pH of a 0.050 M aqueous solution of A<sup>-</sup>? A) 1.0 × 10<sup>-3</sup> B) 3.00 C) 11.00 D) 9.9 × 10<sup>-12</sup> E) 2.5 × 10<sup>-11</sup> .What is the pH of a 0.050 M aqueous solution of A-?


A) 1.0 × 10-3
B) 3.00
C) 11.00
D) 9.9 × 10-12
E) 2.5 × 10-11

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