CHEMISTRY · Multi-part · A Level · Chemistry · Acids and bases · Acids and bases
Problem
The carbonate ion, CO32−, is a common constituent of natural waters.
Parts
(a) Write the balanced proton-transfer reaction between CO32− and liquid water and label all species as acid, base, conjugate acid, or conjugate base.
(b) Describe, in terms of charge density and relative base strength, why water donates rather than accepts a proton in the presence of CO32−.
(c) Predict qualitatively whether increasing the temperature from 25∘C to 35∘C is likely to change the role played by water in the reaction you wrote. Provide a chemical rationale for your prediction.