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Hydrogen 2-1 |
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Periodic Table of the Elements
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Again it is critical that you where your goggles, ear protection and chemical resistant gloves in this experiment. Hydrogen Experiment 2 Supplies Safety Precautions: If at any time you should get lye on your skin pour vinegar on your skin and wash thoroughly with soap and warm water. If burning continues seek medical attention immediately. If you get any in your eye flush with water (don't use vinegar) for several minutes before immediately seeking medical attention. Don't ever eat or drink anything while your doing this, if you swallow/drink this chemical it will burn your stomach and depending on the doses can be fatal!. 1) When choosing your bucket and bottle choose a bottle with a neck long enough to stick up above the bucket rim. Place the bottle into the bucket. 2) Add one cup of water the bottle. 3) Add 3 teaspoons of lye (Use the Funnel) gently swirling around in the bottle without splashing any. 4) Add a small amount of water to the bucket so that is covers part of the body of the bottle (cool water with ice) this will keep the bottle from cracking and if the bottle should break it will minimize the mess. 5) Tear your your foil up and crumple is into several tiny balls small enough to fit into the mouth. Add your foil to the mixture. 6) Stretch out your balloon thoroughly to make it easier to fill. Quickly take your balloon and stretch it over the mouth of the bottle. 7) At first it may seem that nothing is happening at first but it usually takes up to 5 minutes for the reaction to start. Soon gas will be generated filling the balloon along with much heat. Lye fumes will be given off so stand back and if you start to smell something like burning rubber leave the area temporarily. 8) If nothing is happening after 5 minutes gently swirl around the mixture again. 9) Eventually gas will begin to fill the balloon and slowly but surely the balloon will begin filling. 10) Once the balloons stops filling up it will start shrinking. Wait a minute or so for it to shrink because otherwise you will have too much water vapor in the balloon (from the boiling water) that if you light the balloon it will just pop and smoke. 11) Take your long broomstick and tape a candle to the end of it. 12) Danger: If your balloon remains more than a foot in diameter do not light it. Wait for the reaction to completely finish and for it to cool down and carefully remove and deflate the balloon. 13) Light the candle and holding your broomstick by the very other end of the pole stand as far back as you can and hold the flame up so it touches the latex of the balloon. 14) The balloon should explode with a fire ball and loud boom. 15) Congratulations you've just created water. 16) Pour out the contents of the bottle into a large bowl (plastic). Pour in an amount of vinegar 2 times that of the contents of the bottle. Mix around and carefully pour your solution down the drain. Dispose of the balloon and bottle. What is actually happening? Under normal conditions aluminum does not react with water. This is because is contains an oxide coating. When sodium hydroxide is added with aluminum it dissolves the oxide coating allowing water to react with the aluminum releasing hydrogen and heat. This is why the reaction doesn't begin immediately. Creating Water? When you light the hydrogen along with the oxygen in the air, that is a combustion reaction. 2H2 + O2 -------> 2H2O The combustion of water and oxygen creates water or H20!! The water is merely vapor though so it won't be very visible.
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