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    Chemistry Study Set 5
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    Exam 14: Acids and Bases
  5. Question
    If K<sub>a</sub> for HCN Is 6\(\times\) 10<sup>-</Sup><sup>10</sup>,what Is K<sub>b</sub> for CN<sup>-</Sup>? Note: CN<sup>-</Sup> + H<sub>2</sub>O
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If Ka for HCN Is 6 ×\times× 10-10,what Is Kb for CN-? Note: CN- + H2O

Question 77

Question 77

Multiple Choice

If Ka for HCN is 6.17 ×\times× 10-10,what is Kb for CN-? Note: CN- + H2O  If K<sub>a</sub> for HCN is 6.17  \times  10<sup>-</sup><sup>10</sup>,what is K<sub>b</sub> for CN<sup>-</sup>? Note: CN<sup>-</sup> + H<sub>2</sub>O   HCN + OH<sup>-</sup>   A) 6.17  \times  10<sup>-</sup><sup>24</sup> B) 6.17  \times  10<sup>4</sup> C) 1.62  \times  10<sup>-</sup><sup>5</sup> D) 1.23  \times  10<sup>-</sup><sup>9</sup> E) none of these HCN + OH-  If K<sub>a</sub> for HCN is 6.17  \times  10<sup>-</sup><sup>10</sup>,what is K<sub>b</sub> for CN<sup>-</sup>? Note: CN<sup>-</sup> + H<sub>2</sub>O   HCN + OH<sup>-</sup>   A) 6.17  \times  10<sup>-</sup><sup>24</sup> B) 6.17  \times  10<sup>4</sup> C) 1.62  \times  10<sup>-</sup><sup>5</sup> D) 1.23  \times  10<sup>-</sup><sup>9</sup> E) none of these


A) 6.17 ×\times× 10-24
B) 6.17 ×\times× 104
C) 1.62 ×\times× 10-5
D) 1.23 ×\times× 10-9
E) none of these

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