what is the freezing point of soda?

Answer 1

It depends on the sugar content and the CO2 content. Anything dissolved in solution causes the freezing point to go down. The more stuff the lower the point.

Believe it of not this is the phenomenon Avogadro used to define molar mass and his famous number.

I do a demo with club soda (just CO2 in water) I cool it to about –5 C (with salt and ice). I let it stand for a few minute to dissolve all the CO2. When I pop the cap the liquid inside flash freezes (instantly turns solid). This is a case where the escaping CO2 drives the freezing point up – and you have an instant change of state.