Question

will the pH increase or decrease when the CO2 gas comes out when we open the cool drink bottle. please explain

Answer 1

The ph value is decrease because the acid or OH release after the gas released. Sodawater contain carbonic acid which is a weak acid so when soda bottle is opened it releases co2 therefore the pH of solutionwill decrease.

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Answer 2

pH decreases
Acid release or OH release as we can say because Carbonic acid is a weak acid makes the solution present with more H ions.