Experimento caseiro sobre reação de neutralização.

Summary

This experiment demonstrates a chemical reaction called neutralization, where an acidic solution (lemon) is mixed with a basic solution (bleach) to neutralize each other's properties. Beetroot juice is used as an indicator to signal the neutralization point. The procedure involves filtering the lemon juice to remove particles and gradually adding the bleach solution to the acid while observing a color change from violet to green. The green color indicates that the neutralization, or the end point of the titration, has been reached.

Takeaways

• 😀 The experiment demonstrates a chemical reaction where an acidic solution reacts with a basic solution, resulting in neutralization.
• 😀 Lemon is used as the acidic solution for this experiment.
• 😀 Beetroot is used as the indicator to detect the endpoint of the reaction.
• 😀 Bleach (water sanitizing solution) serves as the basic solution in the experiment.
• 😀 The neutralization reaction occurs when an acidic solution and a basic solution are mixed, neutralizing each other's properties.
• 😀 The process begins by filtering the lemon juice to remove particles before use.
• 😀 The beetroot is diluted in water to act as the indicator for the titration.
• 😀 The titration starts by adding bleach (the titrant) to the acidic solution (lemon juice).
• 😀 Initially, the color of the solution is violet, indicating the reaction has not yet reached the endpoint.
• 😀 As the bleach is added, the color shifts to green, indicating that the neutralization point, or the endpoint, has been reached.

Q & A

What is the chemical reaction demonstrated in the video?

The chemical reaction demonstrated is called a neutralization reaction, where an acid and a base neutralize each other's properties.

What substances are used in the experiment as the acid, base, and indicator?

Lemon juice is used as the acid, beetroot serves as the indicator, and bleach (water sanitizing solution) is used as the base.

Why is beetroot used in the experiment?

Beetroot is used as an indicator because it changes color when the solution reaches the neutralization point.

How is the acid solution prepared in the experiment?

The acid solution is prepared by filtering lemon juice to remove any particles.

What is the purpose of filtering the lemon juice?

The lemon juice is filtered to retain the particles and ensure that the solution is clear for the experiment.

What does the color change observed during the experiment indicate?

The color change from violet to green indicates that the neutralization point has been reached.

What does the video describe as the point of neutralization?

The point of neutralization, or the turning point, is when the acid and base completely neutralize each other, which is indicated by a color change in the beetroot solution.

How is the titration process carried out in the experiment?

The titration process is carried out by slowly adding the bleach solution (base) to the acidic lemon juice while observing the color change in the beetroot solution.

What initial color is observed before the titration begins?

Before the titration begins, the color of the solution is initially a little violet.

Why is the beetroot solution used as an indicator in this titration?

The beetroot solution is used as an indicator because it changes color as the pH of the solution shifts from acidic to neutral, helping identify the neutralization point.