Trivia

Hard

Cans Of Diet Soda Float And Regular Soda Sink Because Of Differences In?

Temperature Stability
Can Pressurization
Carbonation Levels
Sweetener Type

Answer: Sweetener Type

When it comes to floating on water, low density is the name of the game. Rocks have a high density and sink, the foam in life jackets has a low density and it floats. While that wouldn’t make for much of a showy experiment (because nobody would expect the life jacket to sink and the rock to float, after all), you can perform a pretty nifty density experiment with two cans of soda.

To perform our little experiment, you’ll need a can of regular soda of any brand and an equivalent can of the diet version, say Coca-Cola and Diet Coke, for example. Place both cans into a bucket of tap water. The Diet Coke will float at the top and the Coca-Cola will sink to the bottom. But why?

Soda cans are filled with water, carbonation, sweetener, and very minute amounts of other things like dye and flavoring. In the case of regular soda, the sweetener is sugar and they put a lot of it in a can. Your average can of soda has approximately 40 grams of sugar dissolved in it. This huge amount of sugar tips the density of the can’s contents to just over 1 gram per cubic centimeter (the density of plain water) and the can sinks to the bottom. Diet sodas, however, use artificial sweeteners that are hundreds of times sweeter than sugar. Because it takes hardly any aspartame (or the equivalent) to make a can of Coke taste sweet, the addition of the sweetener does next to nothing to change the density of the liquid in the can. The diet cola plus the carbonation, then, has a lower density than water and it floats.

Trivia

Easy

Which Nuts Are Actually Beans?

Trivia

Easy

The Mempo Was A Distinctive Piece Of Armor Worn Where?

Trivia

Hard

Astronomers At The Parkes Telescope Identified What As The Cause Of Mysterious Interference?

Trivia

Hard

Which Letter Does Not Appear On The Periodic Table?

X Y
Q J

Trivia

Easy

Which Medical Procedure Can Change Your Blood Type?

Trivia

Very Hard

Which Spider Weaves The Largest Webs In The World?

Trivia

Hard

Which Sci-Fi Movie Swept The Razzie Awards?

Trivia

Hard

Jumboisation Is A Technique For Enlarging?

Trivia

Easy

Modern Subway Maps Were Inspired By?

Trivia

Very Hard

Which Of These Common Household Items Was Invented By Accident?