Calculate the concentration of bicarbonate ion,HCO₃^-,in a 0.050 M H₂CO₃ solution that has the stepwise dissociation constants K_a1 = 4.3 × 10^-7 and K_a2 = 5.6 × 10^-11. A)1.5 × 10^-4 M B)4.3 × 10^-7 M C)2.2 × 10^-8 M D)5.6 × 10^-11 M

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The concentration of bicarbonate ion in a 0.050 M H2CO3 solution can be approximated using the first dissociation constant (Ka1 = 4.3 × 10^-7) because the second dissociation step (Ka2 = 5.6 × 10^-11) contributes negligibly to the overall concentration of bicarbonate ions. The concentration of bicarbonate ions is approximately equal to the square root of (Ka1 × initial concentration of H2CO3), which is sqrt(4.3 × 10^-7 × 0.050) ≈ 1.5 × 10^-4 M.

Calculate the Concentration of Bicarbonate Ion,HCO3-,in a 0

Calculate the Concentration of Bicarbonate Ion,HCO₃^-,in a 0