Experiment 1: Reaction Between Baking Soda and Vinegar:
The reaction between baking soda and vinegar generates carbon dioxide gas, which is used in chemical volcanoes and other chemical projects. Common way to write this reaction is:
NaHCO3 + HC2H3O2 ? NaC2H3O2 + H2O + CO2
The chemical reaction actually occurs in two steps. First acetic acid in vinegar reacts with sodium bicarbonate to form sodium acetate and carbonic acid:
NaHCO3 + HC2H3O2 ? NaC2H3O2 + H2CO3
Carbonic acid is unstable and produce the carbon dioxide gas:
H2CO3 ? H2O + CO2
The carbon dioxide escapes the solution as bubbles. In a baking soda volcano, detergent is added to collect the gas and form bubbles that flow like lava down the side of the 'chemical volcano'.
Experiment: Inflate a balloon with vinegar and baking soda reaction
Baking soda and vinegar reaction - inflate a gas balloon.
You can inflate a gas balloon without having to blow it itself.
What do you need:
a small glass bottle
First add some vinegar into the bottle. Then fill the balloon with baking soda using the funnel. Now the balloon is put gently on the neck. Make sure that the balloon is firmly seated on the neck. Now let the powder from the air balloon trickle into the bottle. In no time the balloon inflates as if by magic.
If one combines vinegar with baking soda, there is a chemical reaction. This produces carbon dioxide. Which is a gas. It can for example be found in bottled water. The carbon dioxide causes the bubbles in the water and let it bubble up. The bubbling is nothing other than escaping gas. Carbon dioxide also arises when dissolving an effervescent tablet in water. Here, too, the resulting gas will escape, rising upwards and thus provides bubbling. In our experiment carbon dioxide rises and flows into the balloon - and it inflates.
Experiment 3: CO2 balloon vs air balloon
Now blow up the second balloon with the mouth. Tie both balloons.
Now you can drop both balloons from the same height. You'll find that the bottle balloon falls faster than the one you've been blowing with the mouth.
But why the CO2 balloon falls to the ground faster?
Pure CO2 is much heavier than the gas mixture that constantly surrounds us (our air). Therefore, a CO2-filled balloon is heavier than one is filled with air. He falls faster.