Sintesis Gas Hidrogen dengan Metode Elektrolisis - UAS Praktikum Kimia Anorganik

Summary

In this practical demonstration, Adim Al Ardi from the Chemistry Education Program at Universitas Palangkaraya explores the synthesis of hydrogen gas through electrolysis. The experiment involves setting up a simple electrolytic cell with materials like a beaker, battery, wires, nails, cardboard, salt, and water. As electricity flows through the solution, hydrogen gas is produced at the cathode. The experiment showcases the effective method of hydrogen synthesis using a sodium chloride electrolyte, offering practical insight into basic chemistry concepts.

Takeaways

• 😀 The introduction includes a greeting and self-introduction, with Adim Al Ardi from the Chemistry Education Program at Universitas Palangkaraya.
• 😀 The topic of the practical session is the synthesis of hydrogen gas using the electrolysis method.
• 😀 The main goal of the experiment is to create and analyze hydrogen gas synthesis through electrolysis.
• 😀 The required tools for the experiment include a 500 ml beaker, a pair of batteries with cables, a spoon, two nails, adhesive tape, and a piece of cardboard for the electrodes.
• 😀 The materials required for the experiment are table salt (2 tablespoons) and distilled water (400 ml).
• 😀 The procedure begins by assembling the electrolysis setup using the listed tools.
• 😀 A salt solution is prepared by dissolving 2 tablespoons of table salt in 400 ml of distilled water, and it is mixed until homogeneous.
• 😀 The solution is allowed to settle if slightly cloudy, to obtain a clearer solution for better electrolysis results.
• 😀 The electrolysis apparatus is connected to the battery and the electrodes are placed in the salt solution to begin the electrolysis process.
• 😀 The experiment shows gas formation, specifically hydrogen gas, at the cathode as a result of the reduction reaction of water into hydrogen and hydroxide ions.
• 😀 The conclusion confirms that hydrogen gas can be synthesized through electrolysis with a NaCl (salt) electrolyte solution, as evidenced by gas bubbles at the cathode.
• 😀 The video concludes with a suggestion for conducting simple inorganic chemistry experiments using readily available materials.

Q & A

What is the main topic of the experiment described in the script?

The main topic of the experiment is the synthesis of hydrogen gas through the method of electrolysis.

What is the purpose of the experiment?

The purpose of the experiment is to synthesize and analyze hydrogen gas using electrolysis.

What are the main tools and materials used in the experiment?

The main tools include a 500 ml beaker, a pair of batteries with wires, a spoon, two nails, adhesive tape, and a piece of cardboard. The materials used include salt (NaCl) and distilled water (aquades).

How much salt is used in the experiment?

The experiment uses 2 tablespoons of salt (NaCl).

What is the role of the cardboard in the setup?

The cardboard is used to hold the nails, which act as the electrodes in the electrolysis process.

What is the procedure to prepare the electrolyte solution for electrolysis?

To prepare the electrolyte solution, 2 tablespoons of salt are added to 400 ml of distilled water in the beaker, and the mixture is stirred until homogeneous.

What happens if the electrolyte solution is not clear enough?

If the electrolyte solution is slightly cloudy, it is left to stand for a while until it becomes clearer, allowing better observation of the electrolysis process.

How is electricity applied in the electrolysis setup?

Electricity is applied by connecting the wires to the ends of the battery and then attaching the wires to the nails (electrodes), allowing current to flow through the electrolyte solution.

What observation confirms that hydrogen gas is being produced?

The formation of bubbles on one of the electrodes, specifically the cathode, indicates the production of hydrogen gas and hydroxide ions.

What is the chemical reaction occurring at the cathode during electrolysis?

At the cathode, water is reduced to produce hydrogen gas (H2) and hydroxide ions (OH-).

What conclusion can be drawn from the experiment?

The conclusion of the experiment is that hydrogen gas can be synthesized through the electrolysis method using an electrolyte solution of sodium chloride (NaCl), as demonstrated by the formation of gas bubbles at the cathode.

What recommendation is made for future experiments?

It is recommended to conduct other simple inorganic chemistry experiments using readily available materials to further explore chemical reactions.