Aim: To show that hydrogen gas is produced when metal reacts with acid
Equipment: A test tube, a boiling tube, Bunsen burner, wooden splint, a bottle of acid, a piece of metal and safety glasses.
Hypothesis: Based on the research I expect when the acid meets the metal it will fizz and bubble. When lighting a match next to the solution it will make a popping noise.
Method:
Light Bunsen burner and set onto the blue flame
Put your scrap metal to a test tube as well as 2ml of acid
Invert the boiling tube above the test tube.
Hold the test tubes together allowing the boiling tube to fill with the resulted gas
When the tube is full a partner should then light a wooden splint
Quickly tilt the boiling tube of gas upwards and insert the splint into the mouth of the test tube
Safety Notes:
- Wear safety/protective glasses through the entire experiment
- Be very cautious when holding harmful acids
- Handle flame with care
- Don't put your hands to close to the blue flame
Metal & Acid Reaction
For our experiment we used Hydrocloric Acid and Magnesium. We completed the experiment following the steps and safety precautions. When we added to magnesium it bubbled and fizzed and the bottom of the test tube felt warm. I noticed our first two tests didn't cause a reaction but we learnt we were leaving the magnesium in the acid for too long for a reaction. On our final test we only left the magnesium in the acid for twenty seconds before applying the lit splint. To ensure our test finally worked we were told to put the splint into the test tube rather than the boiling tube. When the splint was in the tube there was some fizzling and finally a loud pop because the acid and the metals reaction had combusted.
For our experiment we used Hydrocloric Acid and Magnesium. We completed the experiment following the steps and safety precautions. When we added to magnesium it bubbled and fizzed and the bottom of the test tube felt warm. I noticed our first two tests didn't cause a reaction but we learnt we were leaving the magnesium in the acid for too long for a reaction. On our final test we only left the magnesium in the acid for twenty seconds before applying the lit splint. To ensure our test finally worked we were told to put the splint into the test tube rather than the boiling tube. When the splint was in the tube there was some fizzling and finally a loud pop because the acid and the metals reaction had combusted.
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