Problem: Which one of the following is the weakest acid A) HF (Ka = 6.8×10-4)B) acetic acid (Ka = 1.8×10-5) C) HNO2 (Ka = 4.5×10-4) D) НСlО (Ка = 3.0×10-8) E) HCN (Ka = 4.9×10-10) 

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We are being asked to determine which of the following is the weakest acid: HF, acetic acid, HNO2, HClO, HCN

Recall that a higher the Ka means a stronger acid.


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Problem Details

Which one of the following is the weakest acid 

A) HF (Ka = 6.8×10-4)

B) acetic acid (Ka = 1.8×10-5

C) HNO2 (Ka = 4.5×10-4

D) НСlО (Ка = 3.0×10-8

E) HCN (Ka = 4.9×10-10



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