What causes the reaction between mentos and coke? And is coke acidic?

Answer 1

Mentos and Coke are ad dynamite




Acommercial for Mentos Mints has just gone on air. Somewhere in Greenland, a man blows a horn. More men in underpants run down to the sea. They leap in. Much splashing. Trick shots of icy spray looking like cascades of Mentos Mints. Endline: Everyone's gone Mentos.

Is this why Mentos Mints are flying off the shelves? Hardly. Yet sales are up in the stratosphere as the direct result of a film. Just not this film.

Fritz Grobe and Stephen Voltz discovered that if you drop a Mentos Mint into a bottle of Diet Coke, you get a minor explosion. How they discovered this, they do not say. Nor why specifically Mentos Mints and Diet Coke. Suffice it to say, results with lesser mints are, well, lesser.

In the interests of science, Fritz and Stephen filmed themselves dropping various quantities of Mentos into 101 Diet Coke bottles.

As for Coke being Acidic, yes it is............The second link is where you can follow the steps of a science project on different drinks and coke........

The original purpose of this experiment was to determined the acidity of various sodas.

The results of the experiment were Coke pH was 2.44, Pepsi pH was 2.46, Dr. Pepper pH was 2.93, Sprite pH was 2.88, Moutain Dew pH was 3.23, and Mug root beer pH was 4.06.

Answer 2

Coke is carbonic acid (yes mild acid). At atmospheric pressure (when the top is taken off) it is unstable and the CO2 gradually bubbles out of the liquid. Mentos has a high surface area and provides many sites for bubble nucleation so the CO2 comes out of solution much more rapidly ( http://en.wikipedia.org/wiki/Mentos ) Another way is to shake the bottle before opening it, this disperses tiny bubbles into the liquid which act as nucleation sites.

Answer 3

The tiny indentations on the mentos releases the Co2. Like sticking your finger in a glass of Coke before it overflows.

Answer 4

the exterior of the mint Mentos is tormented by many small holes, allowing carbondioxide (CO2) bubbles to form very right away and in large volume, in turn inflicting the jet of froth. CO2 is a gas, with the aid of the undeniable fact that's lighter than the liquid contained in the sphere, all of it tries to upward push to the exterior immediately, coming up the jet how the CO2 is released is a chemical reaction that would no longer be comprehensible in eighth grade. notwithstanding it has to do with nucleation. the mentos act because the nucleating agent, increasing the temperature and crystallization price. Bubbles of carbon dioxide nucleate presently after the stress is released from a field of carbonated liquid. Nucleation regularly takes position better incredibly at a pre-latest interface (heterogeneous nucleation), as takes position on boiling chips and string used to make rock sweet. So-referred to as weight relief plan Coke and Mentos eruptions are a dramatic social gathering. The nucleation price, I, relies upon on the traditional form of severe clusters, n* and the diffusion of molecules to the cluster, ?. I = n^* beta the position the traditional inhabitants of severe nuclei is n^* = Nexp left( frac{-Delta G^*}{k_BT} authentic) the position: * ?G* is severe loose skill necessary. * N is the form of skill nucleation web pages in step with unit volume * kB is the Boltzmann consistent

Answer 5

Yes, Coke is slightly acidic, and Mentos have more of a base property...so...when mixing acids with bases, you get a extreme reaction (it explodes).

Answer 6

Similar to the reaction of baking soda and vinegar. a reaction that liberates carbon dioxide from the vinegar so does the mentos liberate the carbon dioxide from the coke. Heat is absorbed in the reaction and the mixture feels cool to the touch.

Answer 7

mentose is made of calcium and coke is made of carbon. when the reaction takes place carbindioxide is liberated and we get cooling effect. yes coke is acidic yu will know if yu take its pH value by litmus paper.

Answer 8

What happens with coke and mentos, I didn't see it

Answer 9

yes coke is acidic.

Answer 10

All carbonated beverages are acidic. CO2+H2O=H2CO3 carbonic acid.