Answers

  • Brainly User
2014-05-19T10:49:04+05:30
H2CO3 --heat--> H2O + CO2 
CO2 + H2O <==> H3O+ + HCO3- Ka = 4.3 x 10^-7
                                                  as  H2CO3 does not exist as a discrete molecule. There is probably no H2CO3 in aqueous solution. Carbonic acid, H2CO3, simply represents carbon dioxide gas dissolved in water, which exists as the following equilibrium. 
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  • Brainly User
2014-05-19T17:07:11+05:30
H2CO3 --heat--> H2O + CO2 
CO2 + H2O <==> H3O+ + HCO3- Ka = 4.3 x 10^-7
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