H2 yield lab
In this lab we reacted magnesium ribbon with hydrochloric acid, and we tried to capture the hydrogen gas that was produced in the reaction in a graduated cylinder.
What we did is weigh piece of magnesium ribbon and wrap it in copper wire.
Then we got to graduated calendars and put a tube from the bottom of one onto the other one. The one that we added were going to add magnesium to was air tight so no air could escape from it. Next we added 20 ml of HCl water and magnesium to the cylinder.
We quickly caped it off so no gas could escape. As gas built up in the cylinder it slowly forced the water up the tube and into the other cylinder. Once the reaction was finished we wrote down the amount of water in the second cylinder, and that equals the amount of gas produced.
apparatus
2 graduated cylinder
magnesium ribbon
hydrochloric acid
distilled water
plastic tubing
copper wire
Hi Will,
ReplyDeleteYou have told me about the way you set up the lab, but you haven't told me the mass of Mg, the volume of H2 produced, nor have you compared the expected yield with the actual yield.
5/10