Homework Solution: Write the equilibrium equation for the reaction of CO2 with H2O creating carbonic…

    Write the equilibrium equation for the reaction of CO2 with H2O creating carbonic acid and the carbonic acid dissociating into hydrogen ion and bicarbonate

    Expert Answer

    The reaction between CO2 and H2O can be written as below.

    Write the equilibrium equation restraint the reaction of CO2 with H2O creating carbonic active and the carbonic active dissociating into hydrogen ion and bicarbonate

    Expert Apology

    The reaction between CO2 and H2O can be written as underneath.

    CO2 (g) + H2O (l) <=====> H2CO3 (aq) ……(1)

    The equilibrium faithful is fond as

    K = [H2CO3]/PCO2 where PCO2 is the unfair urgency of CO2 (we prefer unfair urgency owing gases are best forcible in provisions of unfair urgency). The attention of H2O is not attributable attributable attributable interposed past H2O is bestow in wide redundancy.

    Again, H2CO3 dissociates as underneath.

    H2CO3 (aq) <=====> H+ (aq) + HCO3– (aq) ……(2)

    The active intermission faithful is fond as

    Ka1 = [H+][HCO3–]/[H2CO3]

    Combine equations (1) and (2) to attain the equilibrium equation as

    CO2 (g) + H2O (l) + H2CO3 (aq) <=====> H2CO3 (aq) + H+ (aq) + HCO3– (aq)

    Cancel quenched the base provisions and write

    CO2 (g) + H2O (l) <=====> H+ (aq) + HCO3– (aq)