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SaintJude

Full Member
Jan 4, 2012
1,479
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  1. Pre-Medical
    If 60mL of a 0.100 N monovalent strong base is neutralized by 30mL of a strong acid solution, and the concentrations of each species is 0.100 M, then the strong acid must be:


    A. 0.100 N and monoprotic
    B.0.200 N and diprotic
    C.0.100 N and diprotic
    D. 0.200 N and monoprotic

    Highlight the sentence: Why is NOT __C_ , but actually _B_ ?
     

    SaintJude

    Full Member
    Jan 4, 2012
    1,479
    5
    1. Pre-Medical
      Oh, the minute I wrote it out I remembered that by definition Normality = (i) M (see MedPr's thread on this normality).

      So from M1V1 = M2V2 , I can see that the acid has to be diprotic and thus normality = 0.2N

      C doesn't even make sense by definition. The acid cannot be diprotic and yet have a 0.1 N value with it's molarity = 0.1M.

      if i'm wrong, correct me. otherwise, nevermind!
       

      MedPR

      Membership Revoked
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      Dec 1, 2011
      18,579
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      1. Pre-Podiatry
        Oh, the minute I wrote it out I remembered that by definition Normality = (i) M (see MedPr's thread on this normality).

        So from M1V1 = M2V2 , I can see that the acid has to be diprotic and thus normality = 0.2N

        C doesn't even make sense by definition. The acid cannot be diprotic and yet have a 0.1 N value with it's molarity = 0.1M.

        if i'm wrong, correct me. otherwise, nevermind!


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