When a can of Pepsi and diet Pepsi are dropped in a tank of room temperature water why does diet Pepsi float and Pepsi doesn't?

Answer 1

Because the high sugar content in regular coke makes it more dense. Diet sodas in general are less dense because the artificial sweetener used is much much sweeter than sugar, and so it is not necessary to add nearly as much (about 10 times less). So diet sodas are less dense than regular soda, and a can of Diet Soda will float in water but not regular.

Answer 2

In short, the density of the diet soda is less than 1 gram per cubic centimeter, so it will float. The density of the regular soda is greater than 1 gram per cubic centimeter, so it sinks.

Density equals mass divided by volume, so we know that there must be a difference in mass or volume between the cans. There are three components to the unit: the can, the air inside and the soda itself. First let's talk about the parts that are the same. Both units have identical cans, and have the same volume and amount of air inside with the soda.The can, which is made of aluminum, would sink if you filled it completely with water. However, the cans filled with soda have enough air inside (called headspace) to offset the mass of the can and the liquid.

But what is the difference between the regular and diet drinks? The mass of the regular soda is greater because of the weight of the sugar, about 33 grams. Diet soda uses a very small amount of artificial sweetener and no sugar, giving it a lower mass. That means that the density of the regular soda will be higher and it will sink.

Answer 3

because it's diet it's diet so it's more healthy haven't you heard fat people don't float

Answer 4

Diet pepsi has less sugar and that's why it floats. Pepsi has more sugar which weighs it down to the bottom at room temperature water.