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Tagged with equilibrium analytical-chemistry
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Short Cut Method to Calculating pH of Polyprotic Acid?
I am doing the following question:
Calculate the pH of a $4.00\ \mathrm{mol\ L^{-1}}$ solution of citric acid.
$\mathrm{pK_{a1}} = 3.09~~~~~ \mathrm{pK_{a2}} = 4.75~~~~~ \mathrm{pK_{a3}} = 6.40$
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6
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1
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Difference in calculated pH and the real pH of a phosphate buffer
I want to prepare a buffer system with $\mathrm{pH} = 7.00$ and a total concentration $c_\mathrm{tot} = \pu{0.10 mol l^-1}$ using sodium hydrogen phosphate $(\ce{Na2HPO4})$ and sodium dihydrogen ...
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