Using the thermodynamic data provided below, calculate Ka1 for H2CO3(aq)at 25°. 
Definitions:
Additional Paid-in Capital
The excess amount over the par value that shareholders pay when shares are issued, recorded in the equity section of the balance sheet.
Consolidated Earnings Per Share
A measure of a company's profitability that takes into account earnings from all of the entities it controls, presented on a per-share basis.
Acquisition-Date Fair Value
The fair value of an asset or liability measured at the date a business combination is effected.
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