Rank the following aqueous solutions in order of increasing pH (lowest to highest):10 M NaNO3 II:10 M NaHSO3 III:

(5) II < I < III

Answer is 5

I was given Ka’s but I don’t know if it’s necessary to use them.


 Carbonic acid, H2CO3, Ka1 = 4.5×10−7, Ka2 = 4.7×10−11 

 Sulfurous acid, H2SO3, Ka1 = 1.4×10−2, Ka2 = 6.5×10−8 

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