CAD-8104 Lecture Notes - Lecture 16: Equilibrium Constant

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17 Jun 2020
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CHEM 2426 HOMEWORK SOLUTIONS
Lactic add, which builds up in muscle tissue
during strenuous exercise, is partially
dissociated in aqueous solution: H H CHI C
CO2H(aq) (aq) a CH, C0O2-0/q) OH OH uric
xid Lactate ion
(a)Write the equilibrium-constant expression
forKc
(b)What is the value of Kai the extent of
dissociation in 0.100 M lactic acid is 3.65% at 25
°C?
a) The dissociation reaction in aqueous solution
is H.Ci00aHtattO OH Lactic acid The
equilibrium constant expression for the reaction
is EHICH,CHOHC00-1 ECH,CHOHC001/1
H HsCre004 OH Lactate ion
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