Using the thermodynamic data provided below, calculate Ka2 for H2CO3(aq)at 25°. 
Definitions:
High Level
Pertaining to a position, status, or stage that is significantly above average in terms of importance, difficulty, or complexity.
Effort Required
The amount of physical or mental exertion needed to achieve a task or goal.
Self-Efficacy
A person's confidence in their capacity to achieve success in particular scenarios or complete a given task.
Persistence
The quality of continuing steadily despite problems or difficulties.
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