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    H2x + 2NaOH-----Na2X +2H2O



    • You have 25.o cm3 of NaOH of concentration 0.01M
    • Your mean titre was 12cm3


    Find the concentration of H2X in original 250 cm3 solution?
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    (Original post by chuckynoriss)
    H2x + 2NaOH-----Na2X +2H2O



    • You have 25.o cm3 of NaOH of concentration 0.01M
    • Your mean titre was 12cm3


    Find the concentration of H2X in original 250 cm3 solution?
    There is a 2:1 ratio of moles in the equation.
    Calculate moles of NaOH then divide by two for moles of H2X
    Hence find the conc. using the mean titre.
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    so would you do

    250/mean tire x moles= moles in 250 cm3

    then to find concentration you do moles/250
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    (Original post by chuckynoriss)
    so would you do

    250/mean tire x moles= moles in 250 cm3
    You could do it like that, yes.

    (Original post by chuckynoriss)

    then to find concentration you do moles/250
    Not quite the units of concentration are moldm-3 the given units are cm3
    To convert 1000cm3 = 1dm3
 
 
 
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