Please explain the answers thoroughlyas well as all the necessary steps arriving

Question

Please explain the answers thoroughlyas well as all the necessary steps arriving at the answers. Thanks. Which represents Ka forHC2O4-? a.   H2C2O4 +H2O H3O+ +HC2O4- b.   HC2O4- +H2O H2C2O4 +OH- c.   HC2O4- +H3O+ H2C2O4 + H2O d.  H2C2O4- +H2O   H3O+ +HC2O4- e.  H2C2O4- +OH-   C2O4- +H2O Please explain the answers thoroughlyas well as all the necessary steps arriving at the answers. Thanks. Please explain the answers thoroughlyas well as all the necessary steps arriving at the answers. Thanks. Which represents Ka forHC2O4-? a.   H2C2O4 +H2O H3O+ +HC2O4- b.   HC2O4- +H2O H2C2O4 +OH- c.   HC2O4- +H3O+ H2C2O4 + H2O d.  H2C2O4- +H2O   H3O+ +HC2O4- e.  H2C2O4- +OH-   C2O4- +H2O c.   HC2O4- +H3O+ H2C2O4 + H2O d.  H2C2O4- +H2O   H3O+ +HC2O4- e.  H2C2O4- +OH-   C2O4- +H2O e.  H2C2O4- +OH-   C2O4- +H2O

Explanation / Answer

H2C2O4 is a diproticacid it dissociated as follows.                 H2C2O4(aq) +  H2O (l) <----> HC2O4- (aq) +H3O+ (aq) HC2O4- is a mono proticacid and it dissociated in aqueous solution is as follows.                         HC2O4- (aq) + H2O(l) <----> C2O4-2 (aq) +H3O+ (aq) Hecne answer d) represents the answer.

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