Does the pH of soda change as it gets flat?

Question

Does the pH of soda change as it gets flat?

Answer 1

It should due to the carbon dioxide leaving the soda. The earths oceans ph will change when/if global warming warms them up. The warmer ocean will release some of the carbon dioxide it holds into the atmosphere.

The CO2 the soda loses will cause a decrease in the carbonic acid concentration in the soda. As a result the soda will become less acidic. The ph will go to a higher number.