how are carbonated drinks basic if they have carbonic acid in them?
Answers
Answer:
The pH of carbonated water is 3–4, which means it's slightly acidic. However, drinking an acidic beverage like carbonated water does not make your body more acidic. Your kidneys and lungs remove excess carbon dioxide. This keeps your blood at a slightly alkaline pH of 7.35–7.45 regardless of what you eat or drink.
Answer:
Carbonic acid (H2CO3) is formed in small amounts when its anhydride, carbon dioxide (CO2), dissolves in water.
CO2 + H2O ⇌ H2CO3
The predominant species are simply loosely hydrated CO2 molecules. Carbonic acid can be considered to be a diprotic acid from which two series of salts can be formed—namely, hydrogen carbonates, containingHCO3−, and carbonates, containing CO32−.
H2CO3 + H2O ⇌ H3O+ + HCO3−
HCO3− + H2O ⇌ H3O+ + CO32−
However, the acid-base behaviour of carbonic acid depends on the different rates of some of the reactions involved, as well as their dependence on the pH of the system. For example, at a pH of less than 8, the principal reactions and their relative speed are as follows:
Explanation:
These salts can be prepared by the reaction of carbon dioxide with metal oxides and metal hydroxides, respectively.
CO2 + O2 → CO32−
CO2 + OH− → HCO3−