leb0011

AIM: to seperate the hydrogen and the clorine in hydrocloric acid by adding a small piece of magnesium to harvest the hydrogen gas.

HYPOTHESIS: hydrogen gas will be collected

EQUIPMENT: - test tubes x2 - test tube rack/holder - magneisum - hydrocloric acid

SAFETY PRECAUTIONS: - always wear covered shoes - always wear glasses and an apron - know where the eyewash station is - if you get the acid on your hands wash them imediatly

METHOD: 1. put goggles and apron on 2. collect equipment 3. pour about 20mls of hydrocloric acid in a test tube 4. put a piece of magnesium in the test tube with the acid in it 5.imeditaly place the 2nd test tube on top of the first test tube and form a tight seal around the join with your hand 6. wait until the magnesium has compleatly disilved 7. light a match and slowly lift the 2nd test tube and tip it upsidedown 8. put the flame ovet the opened end of the tube 9. if the experiment worked there should've heard a pop

RESULTS: there were bubbles coming off the piece of magnesium as it desolved. the tast tube got warmer. it had no scent. you can hear the pop when you lit the match.

DISCUSSION: my results were not what i expected as i didn't do the experiment properly because we flipped the test tube over too quickly and the match didn't always lit