Identifying Unknown White Compounds Lab Report
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Project 3: Identifying the Unknown White Compound by Testing Physical and Chemical Properties
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Michigan State University
Chemistry Lab 161 Section 27
19 October 2017
Friday 11:00-1:50
Introduction
For this experiment, there was an unknown white compound that had to be identified. By testing this compound for different properties it made making an educated guess easier to determine what this compound was so it could be disposed of properly. To attempt to discover our unknown compound, the tests that will be performed will be: solubility test, pH test, physical property test, two precipitate tests, and temperature test with solubility. …show more content…
Solubility is highly important because there are many observations that could be made such as a phase change and to see how the compound reacts with the solvent (water) and once temperature becomes another variable and there are more observations that can be made and for most compounds, the solubility increases with temperature.1 The pH test is important because it tests whether a compound is acidic or basic, this then determines a lot about the compound because it cannot be both. With the pH strips, it gives a more exact answer that allows strips to be compared to see if they are similar.2 The final important test is the precipitate test, this shows if two solutions are soluble when they are mixed. If it doesn’t mix and there is a obvious precipitate in the bottom then it passed the test. If the mixture is clear, then it failed the test and the two solutions are not precipitates of each
Project 3: Identifying the Unknown White Compound by Testing Physical and Chemical Properties
_____________________________________________
Michigan State University
Chemistry Lab 161 Section 27
19 October 2017
Friday 11:00-1:50
Introduction
For this experiment, there was an unknown white compound that had to be identified. By testing this compound for different properties it made making an educated guess easier to determine what this compound was so it could be disposed of properly. To attempt to discover our unknown compound, the tests that will be performed will be: solubility test, pH test, physical property test, two precipitate tests, and temperature test with solubility. …show more content…
Solubility is highly important because there are many observations that could be made such as a phase change and to see how the compound reacts with the solvent (water) and once temperature becomes another variable and there are more observations that can be made and for most compounds, the solubility increases with temperature.1 The pH test is important because it tests whether a compound is acidic or basic, this then determines a lot about the compound because it cannot be both. With the pH strips, it gives a more exact answer that allows strips to be compared to see if they are similar.2 The final important test is the precipitate test, this shows if two solutions are soluble when they are mixed. If it doesn’t mix and there is a obvious precipitate in the bottom then it passed the test. If the mixture is clear, then it failed the test and the two solutions are not precipitates of each