Download Separation of Mixture Components: Chemistry Lab Experiment and more Lab Reports Chemistry in PDF only on Docsity!
Baton Rouge community college
Experiment title:
Separation of components in a mixture
Course/Section #:
Chemistry 1121
Semester:
Spring 2024
ABSTRACT:
This lab is a separation lab in which we will be isolating ammonium chloride, sand and salt from their mixture by using sublimation, Solubility and Filtration method. Experiment is carried out by following procedure: https://www.youtube.com/watch?v=mmATci4Hnzc
Chemicals:
Name Chemical Formula Hazard Ammonium chloride NH 4 Cl Irritates the skin and eyes with possible eye damage Sand SiO 2 None Salt NaCl None
Chemical Reactions:
Two type of phase change reaction happen: Sublimation which is conversion of a solid into gas and solubility in which a solid is dissolved in aqueous medium.
1. Solid → gas Ammonium chloride 2. Solid → aqueous Salt
- Solubility: Soluble = Salt Insoluble = Sand
Procedure:
- Took ammonium chloride, salt and sand in three different watch glasses and mixed them together in China dish.
- Plugged the base of funnel with cotton ball. And placed the funnel on China dish and placed it over Bunsen burner.
- When mixture is heated, the fumes evolved and rose in funnel.
- After the fumes stopped rising, removed the funnel and allowed it to cool down.
- Solid ammonium chloride was collected using spatula and transferred to watch glass.
- Transferred the mixture of sand and salt into beaker and added distilled water into it.
- Stirred the contents of beaker for a while.
- Placed filter paper into funnel and fixed funnel above a beaker.
- Filtered the mixture of beaker.
- Separated the sand particles from funnel by using spatula and transferred into watch glass.
- Poured the filtrate into China dish and evaporated the water.
it becomes a yellowish solid. The residual mixture is still somewhat brown. Upon stirring in water as salt dissolves the water becomes cloudy. When filtration is done, brownish sand is separated. After evaporation of water, light yellowish salt is left on China dish.
CONCLUSION:
The techniques of sublimation and solubility were used to separate a mixture of three solids. Ammonium chloride first sublimated and became a gas. After cooling, it successfully separated from the mixture and went back to the solid phase. Salt was dissolved in water to remove it from the sand. The salt turned from solid to aqueous phase. Salt and sand were separated via filtering. Water was then evaporated to collect salt. Thus, all three components of mixture were separated. Yes, the process was really easy to understand and I successfully learned the process of isolating the components of mixture.
