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Because carbonic acid is diprotic.

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14y ago

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What happens when a titration is done with Na2co3 in the biurrette and h2so4 in the flask?

When titrating Na2CO3 with H2SO4, the acid-base reaction that occurs is: Na2CO3 + H2SO4 → Na2SO4 + H2CO3 The carbonate ion (CO3^2-) in Na2CO3 reacts with the hydrogen ion (H+) in H2SO4 to form carbonic acid (H2CO3), which then decomposes into water (H2O) and carbon dioxide (CO2). The endpoint of the titration is reached when all the Na2CO3 has reacted with the H2SO4.


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