Coke and Pepsi Experiment
There was an experiment on Pepsi and Diet Pepsi to see which can float and which one doesn’t.
Diet pepsi wins the experiment because the density of the pepsi is increased by the dissolved sugar that occupies the space between water molecules. Diet Pepsi doesn't have any additional sugar, and it is less dense than water.
The dissolved sugar raises the density of the water.
The pepsi sinks because of the 39 grams of sugar that is contained within the can. The pepsi’s sweetness equals the same sweetness of the tiny amount of aspartame in the diet pepsi. The effects of the air space in the can, and the mass of the can, combined with the liquid densities to end up just over the density of the water.
The diet pepsi used a tiny amount of aspartame that equals the sweetness as the pepsi, which means that it had a lower density than the water. Because it was a tiny amount, and aspartame is way sweeter than actual sugar, you don’t need a huge amount of aspartame, and you only need to use a little amount, which keeps the overall density lower than water.
Buoyancy facts
Buoyancy is an ability of any object being able to float or rise when it is submerged in fluid. The fluid can be either gas or liquid.
It comes from a greek mythology
How does water have more weight
It is when it has more volume or higher density, how tightly packed the water molecules are in the water. It makes it heavier.
How it works
Heavy objects can float in water, as long as their shape is made to ensure that the displaced weight of the water is greater than the total weight of the object.
Sources used:
Regular and Diet Coke Cans in Water
F2-07. Buoyancy - Pepsi And Diet Pepsi | Physics Lab Demo
Buoyancy | Force, Definition, History, & Applications | Britannica