A week diprotic acid H2A has Ka1 = 4.2 × 10–7 and Ka2 = 4.8 × 10–11. Determine the pH of a 0.17 M solution of the salt NaHA. A. 9.6 B. 9.8 C. 10.2 D. 4.2 E. 10.4

Chemistry & Chemical Reactivity
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Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions
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A week diprotic acid H2A has Ka1 = 4.2 × 10–7 and Ka2 = 4.8 × 10–11. Determine the pH of a 0.17 M solution of the salt NaHA.

  •  
    A. 

    9.6

  •  
    B. 

    9.8

  •  
    C. 

    10.2

  •  
    D. 

    4.2

  •  
    E. 

    10.4

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