HOW TO MAKE EXPLOSION USING SODIUM HYDROXIDE AND ALUMINIUM

The reaction between aluminum and sodium hydroxide (NaOH) solution is an interesting and commonly observed chemical reaction in laboratory settings. This reaction falls under the category of metal displacement reactions or single-replacement reactions. Here's the balanced chemical equation for the reaction:

2Al(s) + 2NaOH(aq) → 2NaAlO2(aq) + H2(g)

In this reaction:

  1. Aluminum (Al) is a solid metal that reacts with sodium hydroxide (NaOH), which is an aqueous solution of sodium ions (Na⁺) and hydroxide ions (OH⁻).

  2. As the reaction proceeds, aluminum displaces sodium from sodium hydroxide. The aluminum atoms lose electrons and get oxidized to form aluminum ions (Al³⁺), while sodium ions (Na⁺) from sodium hydroxide are reduced to form hydrogen gas (H₂) and sodium aluminate (NaAlO₂).

  3. Sodium aluminate (NaAlO₂) is a white solid that remains dissolved in the aqueous solution. It's a compound formed by the combination of aluminum and sodium ions along with hydroxide ions.

    4. Hydrogen gas (H₂) is produced as a byproduct of the reaction and is typically observed as bubbles evolving from the solution. This is a characteristic sign of the displacement of hydrogen ions (H⁺) from water molecules by aluminum. 

    The reaction is exothermic, meaning it releases heat energy as it proceeds and when carried out in a closed container like a bottle, explosion takes place

    What to do?

    1. put sodium hydroxide pellets into a bottle

    2. Add aluminum foil

    3. Put in some water and close the bottle tightly, shake it for short time (Do not hold the bottle for some long, it may explode within your hands)

    5. Put the bottle containing the mixture at a distance to observe the reaction without being affected

    Note:

    The harder the bottle, The louder the sound of explosion

    Disclaimer

    The provided procedures are for educational purpose only, am not responsible for any damage caused by the experiment.

 

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