Aluminium foil, Dilute hydrochloric acid, Conical flask, Rubber cork, Glass tube, Lighter, Candle, Measuring cylinder, Forceps, Glass stopper bottle with dropper and Stand.
Real Lab Procedure:
- Take a few pieces of aluminium foil in a dry conical flask.
- Pour 3 ml of dilute hydrochloric acid into the conical flask using a measuring cylinder.
- Place the rubber cork on the mouth of the test tube.
- Insert the glass tube into the conical flask through the hole of the rubber cork.
- Take a lighter and light the candle.
- Bring the lightened candle into the mouth of the glass tube.
- Drag the forceps onto the top of the watch glass containing aluminium foil.
- Drop the forceps to take a few pieces of aluminium foil.
- Drag the forceps containing aluminium foil towards the conical flask.
- Drop the aluminium foil into a conical flask.
- Drag and drop the dropper with 3 ml of diluted hydrochloric acid into the measuring cylinder.
- Drag and drop measuring cylinder containing dil.HCl into a conical flask.
- Drag and drop the rubber cork on the mouth of the conical flask.
- Drag and drop the glass tube into the conical flask through the hole of the rubber cork.
- Drag and drop a lighter towards the candle and light the candle.
- Drag and drop the lightened candle into the mouth of the glass tube.
- On adding acid into a conical flask containing aluminium foil, bubbles of some gas evolve.
- On bringing an ignited candle near the glass tube's mouth, the gas burns with a “Pop” sound.
- Hydrogen gas evolved in the reaction between the aluminium foil and dilute hydrochloric acid.
Aluminium + dilute hydrochloric acid → Aluminium chloride+ hydrogen gas.
2Al + 6HCl →2AlCl3 + 3H2
- Hydrogen gas burns, forming water, producing a pop sound.
Hydrogen gas + Oxygen gas → water (pop sound)
2H2 + O2 → H2O + Energy
- Take necessary precautions in the laboratory.
- Be careful while using the lightened candle.
- Be careful while handling the acids.