Percobaan 2, Sifat Fisik Pemisahan

Summary

This script outlines a chemistry experiment focusing on physical properties and separation techniques. The goals are for students to understand purification processes and distinguish compounds based on chemical reaction properties. The experiment involves filtering, heating, and chromatography to separate and analyze a mixture of acetone and HCL, aiming to yield pure substances and remove impurities.

Takeaways

• 🔍 The experiment is focused on understanding the physical properties and separation processes in chemistry.
• 🧪 The main objectives are for students to comprehend the principles of purification methods and to distinguish compounds based on chemical reaction properties.
• 🌐 Separation and purification are branches of chemistry dealing with the process of separating mixtures into pure components.
• 🔬 The primary goal of chemical purification is to remove impurities to achieve a high level of purity in the chemical product.
• 📝 The required materials include filter paper, a thermometer, a funnel, a pipette, a glass beaker, and a Chamber glass air.
• 💧 The procedure starts with analyzing a turbid liquid by filtering 50 ml of the solution through filter paper.
• 🔥 After filtering, 25 ml of the filtrate is heated in a chemistry glass at 150 degrees Celsius.
• ⏱ The residue is then dried in an oven at 100 degrees Celsius for approximately 5 hours and 10 minutes, and the total solid and dissolved solid are measured.
• 📊 Chromatography is performed by applying the eluent to a prepared chromatography paper and observing the resulting Rf values.
• 🧪 The separation process involves using a separatory funnel to separate a mixture of cyclohexane and iodine by shaking and then releasing the gas and lower phase.
• 📝 The experiment concludes with observing and analyzing the volume of the separated phases.

Q & A

What is the main objective of the second experiment mentioned in the script?

The main objective of the second experiment is for students to understand the process and principles of purification methods in chemistry and to be able to distinguish between substances based on chemical reaction properties.

What is the definition of separation and purification in chemistry as described in the script?

Separation and purification in chemistry is related to the process of separating a mixture into its pure components. It is done to produce a chemical substance that is pure or purer than the mixture contained in the raw material.

What is the primary goal of chemical purification?

The primary goal of chemical purification is to remove impurities to achieve a chemical substance with high purity that meets the desired specifications.

What are the materials and tools needed for the experiment as listed in the script?

The materials and tools needed for the experiment include filter paper, thermometer, Airline Mayor funnel, glass rod, Chamber glass, Baker glass, 100 ml of eluent (acetone and HCl aquadest), and cyclohexane.

How much eluent is used in the first step of the experiment?

In the first step of the experiment, 100 ml of eluent is used.

What is the purpose of filtering 50 ml of turbid water using filter paper in the experiment?

The purpose of filtering 50 ml of turbid water using filter paper is to separate the filtrate and residue.

What is the temperature at which the filtrate is heated in the experiment?

The filtrate is heated at a temperature of 150 degrees Celsius.

What is done with the residue after it is produced in the experiment?

The residue is placed in an oven at a temperature of 100 degrees Celsius for approximately 5 to 10 minutes and then weighed to calculate the total solid and dissolved solid.

What is chromatography and how is it used in the experiment?

Chromatography is a method used to separate mixtures. In the experiment, eluent is introduced into a container, and a prepared chromatogram (filter paper of size 14*7 cm) is marked with different colors to observe and calculate the resulting RF values.

What is the first step in the separation process using a separatory funnel as described in the script?

The first step in the separation process using a separatory funnel is to assemble the funnel and then introduce a mixture of cyclohexane and iodine into it.

How is the gas removed from the separatory funnel during the experiment?

The gas is removed from the separatory funnel by opening the stopper on the funnel.

What is observed and analyzed at the end of the experiment with the separatory funnel?

At the end of the experiment, the volume of the phase that is below is observed and analyzed.