What is the K₂ reaction of HCN?K₁ reaction:The K₂ of HCN is 6.2 × 10-¹0. What is the K₁ value for CN¯ at 25 °C?Kb For the diprotic weak acid H₂A, Kal 2.1 x 10-6 and K₁2 = 7.9 × 10-⁹.What is the pH of a 0.0400 M solution of H₂A?pH =What are the equilibrium concentrations of H₂A and A²- in this solution?2[H₂A] ==[A²] ==MM

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What is the K₂ reaction of HCN? K₂ reaction: The K₂ of HCN is 6.2 x 10-¹0. What is the K value for CN- at 25 °C? Kb =

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Question

What is the K₂ reaction of HCN?
K₁ reaction:
The K₂ of HCN is 6.2 × 10-¹0. What is the K₁ value for CN¯ at 25 °C?
Kb

For the diprotic weak acid H₂A, Kal 2.1 x 10-6 and K₁2 = 7.9 × 10-⁹.
What is the pH of a 0.0400 M solution of H₂A?
pH =
What are the equilibrium concentrations of H₂A and A²- in this solution?
2
[H₂A] =
=
[A²] =
=
M
M

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