Oxalic acid → H2C2O4(aq) → diprotic acid
Gather the Ka values for oxalic acid.
Ka1 = 5.9x10-2
• 1st dissociation: H2C2O4(aq) + H2O(l) → HC2O4-(aq) + H3O+(aq)
Ka2 = 6.4x10-5
• 2nd dissociation: HC2O4-(aq) + H2O(l) → C2O4-(aq) + H3O+(aq)
What is the equilibrium concentration of H3O+ in 0.20 M solution of oxalic acid?
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