Question
Based on these descriptions, write a balanced equation and thecorresponding Keq expressions for each reversiblereaction: a. Carbonyl fluoride COF2(g)decomposes into gaseous dioxide and gaseous carbontetrafluoride. b. Peroxodisulfate ion,S2O82-, oxideizes iron (II) toiron (III) ion in aqueous solution and it itself reduced to sulfateion. c. Copper metal displaces silver (I) ionfrom aqueous solution, producing silver metal and an aqueoussolution of copper (II) ion Based on these descriptions, write a balanced equation and thecorresponding Keq expressions for each reversiblereaction: a. Carbonyl fluoride COF2(g)decomposes into gaseous dioxide and gaseous carbontetrafluoride. b. Peroxodisulfate ion,S2O82-, oxideizes iron (II) toiron (III) ion in aqueous solution and it itself reduced to sulfateion. c. Copper metal displaces silver (I) ionfrom aqueous solution, producing silver metal and an aqueoussolution of copper (II) ion
Explanation / Answer
(a)Balanced equation : 2COF2 <----> CF4 + CO2 Equilibrium constant , K eq = ( [ CF4 ][ CO2 ] ) / [ COF 2 ] 2 (b) S2O82- + Fe2+ <----> Fe 3+ +2SO42- Equilibrium constant , K eq =( [Fe 3+ ] [SO42- ] 2 ) / ( [S2O82- ][ Fe 2+ ]) (c) Cu + 2Ag + <----> 2Ag + Cu2+ Equilibrium constant , K eq = [ Cu2+ ] / [Ag + ]2 Equilibrium constant , K eq =( [Fe 3+ ] [SO42- ] 2 ) / ( [S2O82- ][ Fe 2+ ]) (c) Cu + 2Ag + <----> 2Ag + Cu2+ Equilibrium constant , K eq = [ Cu2+ ] / [Ag + ]2