Question

What would happen if you added more than 5 mL of yeast solution to the H2O2?

Answer 1

Adding more than 5 mL of yeast solution to H2O2 would result in more rapid and vigorous production of gas.

Step-by-step explanation:

When you add more than 5 mL of yeast solution to H2O2 (hydrogen peroxide), you are introducing more catalysts to the chemical reaction. Yeast contains catalase, an enzyme that helps break down hydrogen peroxide into water and oxygen. The reaction can be summarized by the equation: 2H2O2 → 2H2O + O2. By increasing the amount of yeast, you increase the catalytic activity, which in turn speeds up the decomposition of hydrogen peroxide. Therefore, you would expect to observe more rapid bubbling, indicating a faster release of oxygen gas. However, since catalysts do not change the position of the equilibrium, the overall quantities of water and oxygen produced will remain the same as long as hydrogen peroxide is in excess.

Answer 2

Answer: -

Hydrogen peroxide breaks down into water and oxygen.

2H₂O₂ → 2H₂O + O₂

The yeast present contains an enzyme called catalase which catalyses the reaction.

More the amount of the catalyst added, faster will be the decomposition of the hydrogen peroxide.

Thus if we added more than 5 mL of yeast solution to the 2H₂O₂, the breakdown would occur faster. Thus the bubbles and the accompanying fizz would be much more.