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suju101

  • 4 years ago

calculate the concentrationof sodium formate that must be present in a 0.1M solution of formis acid to produce a pH of 3.80. (Ka for formic acid =1.8*10^-4)

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  1. amitlpu91
    • 4 years ago
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    as reasction takes place as :- Na + HCOOH --->>>HCOONa +H^+

  2. amitlpu91
    • 4 years ago
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    now u can determine concentration of h^?+ by using formula of PH =-log [H^+] & ....simply apply formula for ka....

  3. amitlpu91
    • 4 years ago
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    as ka = [hcoona] [h+] / [Na] [hcooh]

  4. suju101
    • 4 years ago
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    thanx

  5. amitlpu91
    • 4 years ago
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    ur welcome ...:)

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