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# Keq - = P O 2[Pb 4 2[H 3 O 4 or K =[O 2[Pb 4 2[H 3 O 4(6 K...

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Examples of Equilibrium Constants for Different Reactions Write the equilibrium constant expression for each of the following reactions. (1) 3O 2 ( g ) <=> 2O 3 ( g ) (2) CaCO 3 ( s ) + 2H 3 O + ( aq ) <=> Ca 2 + ( aq ) + CO 2 ( g ) + 3H 2 O( l ) (3) 2Hg( l ) + O 2 ( g ) <=> 2HgO( s ) (4) 2As 2 O 3 ( g ) <=> As 4 O 6 ( g ) (5) 2PbO 2 ( s ) + 4H 3 O + ( aq ) <=> 2Pb 4 + ( aq ) + O 2 ( g ) + 6H 2 O( l ) (6) P 4 ( s ) + 6Cl 2 ( g ) <=> 4PCl 3 ( l ) (7) 3Al 2 Cl 6 ( g ) <=> 2Al 3 Cl 9 ( g ) (8) Zn( s ) + 2H 3 O + ( aq ) <=> Zn 2 + ( aq ) + H 2 ( g ) + 2H 2 O( l ) (9) SnCl 2 ( s ) + Cl 2 ( g ) <=> SnCl 4 ( l ) (10) 4Au( s ) + O 2 ( g ) + 2H 2 O( l ) <=> 4Au + ( aq ) + 4OH ( aq )

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-2- (1) K = P 2 O 3 P 3 O 2 or [O 3 ] 2 [O 2 ] 3 (2) K = P CO 2 [Ca 2 + ] [H 3 O + ] 2 or [CO 2 ][Ca 2 + ] [H 3 O + ] 2 (3) K = 1 P O 2 or 1 [O 2 ] (4) K = P As 4 O 6 P 2 As 2 O 3 or [As 4 O 6 ] [As 2 O 3 ] 2 (5) K
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Unformatted text preview: = P O 2 [Pb 4 + ] 2 [H 3 O + ] 4 or K = [O 2 ][Pb 4 + ] 2 [H 3 O + ] 4 (6) K = 1 P 6 Cl 2 or 1 [Cl 2 ] 6 (7) K = P 2 Al 3 Cl 9 P 3 Al 2 Cl 6 or [Al 3 Cl 9 ] 2 [Al 2 Cl 6 ] 3 (8) K = P H 2 [Zn 2 + ] [H 3 O + ] 2 or [H 2 ][Zn 2 + ] [H 3 O + ] 2 (9) K = 1 P Cl 2 or 1 [Cl 2 ] (10) K = [Au + ] 4 [OH − ] 4 P O 2 or [Au + ] 4 [OH − ] 4 [O 2 ]...
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Keq - = P O 2[Pb 4 2[H 3 O 4 or K =[O 2[Pb 4 2[H 3 O 4(6 K...

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