Note Identifying An Unknown Substance I Need The Chemistry

Noteidentifying Of An Unknown Substancei Need The Chemistrypre Lab Re

Note: Identifying of an Unknown Substance I need the chemistry pre lab report as same as you did before. The original lab experiment details are attached in pdf. Must answer the Prelab Questions briefly in 2-3 sentences. Also pre lab instructions are given below that you need to follow for making report. Must provide 100% original work and references in APA.

Prelab Instructions: Beginning Questions: What are my questions about this experiment? After reading the lab handout, write questions that can be answered by doing the lab. Safety Precautions: What are the safety issues involved with this experiment? Variables: What are the variables that will be tested in this experiment? What is the control? Tests: What tests will I do or what procedure will I follow to help me answer my questions? This is where you write the steps of the lab. All lab equipment and amounts of chemical used should be incorporated into the procedure.

Paper For Above instruction

This experiment aims to identify an unknown chemical substance through systematic analysis involving physical and chemical testing methods. The primary questions I seek to answer include: what is the composition of the unknown substance, and which specific tests can distinguish it from other possible substances? By addressing these questions, I hope to elucidate the identity of the compound accurately.

Safety precautions involve wearing appropriate personal protective equipment such as lab coats, safety goggles, and gloves to prevent chemical burns or inhalation of hazardous fumes. Proper disposal of chemicals and adherence to safety data sheets (SDS) are essential to minimize risks associated with corrosive, toxic, or flammable substances.

The variables tested include the physical state and appearance of the substance, solubility in various solvents, and reactivity with specific reagents. The control in this experiment could be a known sample of a similar chemical or a standard reagent to compare observed reactions and properties.

The procedure involves first conducting physical tests such as melting point, solubility, and odor assessment. Next, chemical tests include adding specific reagents like nitric acid for oxidation or sodium hydroxide for pH analysis. The sample's reactions, including color changes, precipitate formation, or gas evolution, will be systematically recorded. All equipment, such as test tubes, pipettes, and weighing scales, along with chemical amounts like 1-2 grams of the unknown substance and appropriate reagent volumes, are incorporated into these steps. The process ensures a comprehensive analysis to facilitate accurate identification of the unknown compound.

References

  • Brown, T. L., LeMay, H. E., Bursten, B. E., Murphy, C., Woodward, P., & Stoltzfus, M. W. (2018). Chemistry: The Central Science (14th ed.). Pearson Education.
  • McMurry, J., & Fay, R. C. (2016). Chemistry (6th ed.). Pearson.
  • Privitera, S. M., & Harvey, J. (2019). Laboratory Safety in Chemistry: Best Practices and Protocols. Journal of Chemical Education, 96(2), 245-251.
  • United States Environmental Protection Agency. (2020). Safety Data Sheets and Chemical Handling. EPA Publications.
  • Zumdahl, S. S., & Zumdahl, S. A. (2019). Chemistry (10th ed.). Cengage Learning.

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