Buffer solutions in chemistry

Chemistry
Tutor: None Selected Time limit: 1 Day

What is the concentration of H+ ions in a buffer solution containing 0.738 M benzoic acid (with ionization constant 6.5 × 10−5 ) and 0.325 M sodium benzoate (a salt of benzoic acid)?

Feb 27th, 2015

here we hav eto solve this equation:

6.5*10^(-5) = [y(0.325+y)/(0.758-y)]

where y = [H+]

the unique acceptable solution is:

y=[H+]= 1.476*10^(-4) mol/liter

Feb 27th, 2015

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Feb 27th, 2015
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Feb 27th, 2015
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