How do you find the reactant that is a Brønsted−Lowry acid in the following reaction: CO32−(aq)+H2O(l)⇌HCO3−(aq)+OH−(aq)?

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[匿名]

2016-06-15 1:19 am

更新1:

and in a chemical formula please? I understand the conjucated acid base pairs. I just don't understand how to write the reactant that is an acid as a chemical formula. I know that CO3^-2 (base) is paired with HCO3^-(acid) and H2O(acid) is paired with OH^-(base)

回答 (1)

fooks

2016-06-15 1:50 am

CO₃²⁻(aq) + H₂O(l) ⇌ HCO₃⁻(aq) + OH⁻(aq)

Divide the reaction into two parts :
CO₃²⁻(aq) + H⁺(l) ⇌ HCO₃⁻(aq)
H₂O(l) ⇌ OH⁻(aq) + H⁺(aq)

CO₃²⁻ acts as a base as it acts as a proton acceptor.
H₂O acts as an acid as it acts as a proton donor.

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