Chemistry

In this Experiment, we used Hydrochloric Acid and Magnesium to make Hydrogen. The whole purpose was to make it and test it. So once we put the magnesium in the test tube filled with hydrochloric acid, a chemical reaction took place. As the magnesium was dissolving the acid was warming up. The hydrochloric acid is a clear liquid and is also a transparent. The Magnesium is a silver colored ribbon. As it was dissolving the chemical reaction was building a pressure on my thumb. Which was a sign that is was making Hydrogen. There was a little frizzy which also should a chemical reaction. Once there magnesium was gone, which stood the same color of clear liquid, it was time to test it. As we placed the lit match on top of test tube there was no pop. But you could still see the smoke going down to the bottom, which where the acid is at, of the test tube. Hydrogen, which is very flammable, is the lightest gas and is used to make ammonia, methanol, gasoline, heating oil, and rocket fuel.

Some observation I noticed during the lab was the pressure that was acting on my thumb when the magnesium was dissolving into the acid to make the Hydrogen. Another one is the bubbling that was happening in the test tube. In addition to that, the acid was getting a bit warmer as the magnesium was dissolving. These are all signs of a chemical reaction. The reason I know that there was a chemical reaction taking place is because of the way magnesium reacted toward the Hydrochloric acid. And after four minutes the ribbon of magnesium was longer there. This is an example of covalent bonding because it two non metals.

This experiment was a failure because my hypothesis was wrong. My hypothesis was to make and test hydrogen. In order for you to prove that it is hydrogen you need to hear the pop. There many errors that made my hypothesis wrong. One of them was that I had let go of the test tube when I was to hold it with pressure on the top of the tube. Which lead to way it didn’t pop. Another was maybe we took to long to light the match so in result the hydrogen escape in the air. I think that the piece of magnesium was to small making a little bit of hydrogen. If I would change the experiment I would. I would really make sure that the magnesium is the right size. And also pay more attention to the time it took for that magnesium to dissolve in the hydrochloric acid. Also made it more when to light and the match and let go of the test tube.