Problem: Consider the ionization constants hypochlorous acid (HOCl):  Ka = 3.5 × 10−8 ; ammonia (NH3) : Kb = 1.8×10−5 . A solution of ammonium hypochlorite (NH 4OCl) is 1. neutral, because the cation and the anion in the salt hydrolyze to the same extent. 2. acidic, because the cation in the salt hydrolyzes to a greater extent than the anion in the salt. 3. neutral, because NH4OCl is a weak base/weak acid salt. 4. basic, because the anion in the salt hydrolyzes to a greater extent than the cation in the salt. 5. acidic, because the anion in the salt hydrolyzes to a greater extent than the cation in the salt. 6. basic, because the cation in the salt hydrolyzes to a greater extent than the anion in the salt.

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Consider the ionization constants hypochlorous acid (HOCl):  Ka = 3.5 × 10−8 ; ammonia (NH3) : K= 1.8×10−5 . A solution of ammonium hypochlorite (NH 4OCl) is

1. neutral, because the cation and the anion in the salt hydrolyze to the same extent.

2. acidic, because the cation in the salt hydrolyzes to a greater extent than the anion in the salt.

3. neutral, because NH4OCl is a weak base/weak acid salt.

4. basic, because the anion in the salt hydrolyzes to a greater extent than the cation in the salt.

5. acidic, because the anion in the salt hydrolyzes to a greater extent than the cation in the salt.

6. basic, because the cation in the salt hydrolyzes to a greater extent than the anion in the salt.

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Based on our data, we think this problem is relevant for Professor Pelton's class at UMN.