"Egg-plosion"

•     Blow out the contents of an egg:  make a small hole on top and bottom of egg and blow.

•    Allow egg to dry overnight.

•    Generate hydrogen gas (H₂) using set-up shown.

•             I use 35 g of mossy zinc (Zn) with 50 mL muriatic acid (HCl) added to 200 mL tap water.

•             Acid that is too concentrated will generate hydrogen gas too rapidly.

•    Allow the hydrogen gas to expel any air in the egg for about 1 minute (as shown in photo).

•             You will see vapors leaving the top of the egg.

•    Hold your finger over the top of the egg and continue to fill the egg with hydrogen for 90 seconds.

•    Set the egg on top of a 50 mL beaker and light a match to ignite the hydrogen gas on top of egg.

•    If your quiet, you will hear a faint "pop" as the hydrogen gas is lit.  Wait patiently and after about 30 seconds, the egg will explode violently. 

•    As the hydrogen burns, it sucks in oxygen from the bottom of the egg - when the lowest combustible ratio of hydrogen and oxygen are obtained -    -the egg explodes.  

CAUTION:  Wear safety glasses and ear protection if you have sensitive hearing.