Aim:
To see what a positive test is for hydrogen gas
Method:
1.Add your sample of metal to your test tube.
2.Add 2ml of acid.
3.Carefully invert the boiling tube above
the test tube containing the metal and acid.
4.Hold the test tube together for a few minutes,
allowing time for the inverted boiling tube to fill with gas.
5.When you think the tube is full,
your lab partner should light a wooden splint.
6.Carefully, but quickly, tilt the boiling tube full of gas upwards
and insert the burning splint into the mouth of the test tube.
Results: After three tries the reactants made a pop noise when
the burning splint touched the gas that was produced.
Discussion: As soon as the metal and acid was trapped between the tubes
it started to boil and produce a gas, once heat was applied the reactants
made a pop noise, immediately afterwards it started to smoke up.
Conclusion: Although in the end we managed to get the reaction we were aiming for, it took a while due to us using a weaker acid first. Once the acid was changed we got the results wanted.
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