It is the gas that we emit during breathing and also a gas that plants use during the photosynthesis process. Carbon dioxide is also the same gas frequently added to water to make soda water and any other carbonated drinks. This gas is often trapped during industrial processes and reclaimed to make Dry Ice. At room temperature and pressure, dry ice wants to no longer be a solid and wants to become a gas. The molecules that hold the dry ice together can only be separated by heat trying to separate the molecules from each other. The molecules get the heat from the air that is surrounding it. So we have CO2(s)CO2(g) or a solid going to a gas. Being a useful device in the world of everything cold, it’s a useful tool for experiments such as this one, when mixed with other substances of different polarities. Due to the fact that Dry Ice is non polar …show more content…
The molecules of a polar solvent like water are attracted to other polar molecules, such as those of sugar. This explains why sugar has such a high solubility in water. Ionic compounds, such as sodium chloride, are also highly soluble in water. Because water molecules are polar, they interact with the sodium and chloride ions. In general, polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar solutes. This concept is often expressed as “Like dissolves like.”
As we add the dry ice to the water, what reaction is really happening here? As the solid dry ice dissolves in the water it begins to produce carbonic acid, H2CO3. This is a form of sublimation going from solid to gas.