Matt Treadwell

King Kong's Hand

Concept: Vinegar and baking soda react to form CO2.

Materials:

* Latex Glove

* Vinegar

* Baking Soda

* 250 mL beaker

Directions:

* Take one latex glove and open it up wide enough to pour baking soda into it. Fill the fingertips about half way up.
* Pour 50 mL of vinegar into the beaker.
* Place latex glove filled with baking soda over the beaker filled with vinegar and make sure it is securely fastened on the beaker.

Introduction:

I'm dressing up as King Kong for halloween. The only problem about me being King Kong is that I don't have big enough hands. I guess I will have to make the hands my self.

Explanation:

The vinegar and baking soda react to form carbon dioxide gas, CO2. This gas is then trapped inside of the glove. The gas molecules hit the sides of the glove to cause pressure to blow it up. The more gas that is formed results in more molecules and causes an ever increasing pressure. As a result of this the more the reaction, the larger the glove.

Acetic acid + sodium bicarbonate ---> carbon dioxide + water + sodium bicarbonate

Disposal: The contents may be safely poured down the drain.

Safety: Be careful not to let the glove expand to far as it may slip off of the beaker. Spills may occur, but are not dangerous. Wear eye goggles.

Reference: Unknown