Several approximate pH values are marked on the following pH scale.

Some of the following solutions can be matched to one of the approximate pH values marked on the scale; others cannot. For solutions that can be matched to a pH value, identify each solution and its pH value. Identify the solutions that cannot be matched, and give reasons why matches are not possible. 

(a) 0.010 M H₂SO₄; 

(b) 1.0 M NH₄Cl; 

(c) 0.050 M KI; 

(d) 0.0020 M CH₃NH₂;

(e) 1.0 M NaOCl; 

(f) 0.10 M C₆H₅OH;

(g) 0.10 M HOCl; 

(h) 0.050 M ClCH₂COOH; 

(i) 0.050 M HCOOH.

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