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    The ka value is 2.65*10-4 for weak acid HY.
    0.03 Mol of the salt NaY is dissolved in 500cm3 of a 0.250moldm3 solution of the acid HY
    Concentration (NaY) = 0.03/500*1000= 0.6
    Ka = H+ + NaY/HY?
    Am I going in the right direction or am I just completely wrong because I am really confused 😕
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    Is there any HY in the solution?
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    (Original post by Pigster)
    Is there any HY in the solution?
    Yes - just edited the question sorry
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    (Original post by Pepper111)
    Ka = H+ + NaY/HY
    You mean Ka = H+ x NaY/HY

    times not plus

    Plug the numbers in, re-arrange and calculate.
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    (Original post by Pigster)
    You mean Ka = H+ x NaY/HY

    times not plus

    Plug the numbers in, re-arrange and calculate.
    Thanks very helpful. Such a dumb mistake.
 
 
 
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