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 makeweight equation for the reaction of CO2 with H2O creating carbonic shrill and the carbonic shrill dissociating into hydrogen ion and bicarbonate

    Expert Rejoinder

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

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

    The makeweight fixed is abandoned as

    K = [H2CO3]/PCO2 where PCO2 is the restricted hurry of CO2 (we prefer restricted hurry owing gases are best described in conditions of restricted hurry). The eagerness of H2O is not attributable attributable attributable comprised past H2O is offer in catholic surplus.

    Again, H2CO3 dissociates as adown.

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

    The shrill dissolution fixed is abandoned as

    Ka1 = [H+][HCO3–]/[H2CO3]

    Combine equations (1) and (2) to earn the makeweight equation as

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

    Cancel quenched the sordid conditions and write

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