CHE 128LAB – General Chemistry for Engineers Laboratory 2
Chemistry is a fundamental science that plays a crucial role in our daily lives. It helps us understand the world around us and provides solutions to many real-world problems. As an engineering student, you must have a good understanding of chemistry, especially if you plan to work in fields such as materials science, chemical engineering, or environmental engineering. CHE 128LAB is a course designed to introduce you to the basic concepts of chemistry and their applications in engineering. In this article, we will discuss General Chemistry for Engineers Laboratory 2, which is a part of the CHE 128LAB course.
Table of Contents
Introduction
CHE 128LAB is a laboratory-based course designed for engineering students to gain hands-on experience in chemistry. Laboratory 2 is the second part of the course, which covers the following topics: determination of the formula of a compound, chemical reactions and stoichiometry, and spectroscopy. In this lab, students will learn how to conduct experiments, analyze data, and draw conclusions based on their findings.
The Purpose of CHE 128LAB – General Chemistry for Engineers Laboratory 2
The purpose of CHE 128LAB – General Chemistry for Engineers Laboratory 2 is to introduce engineering students to the basic concepts of chemistry and their applications in engineering. By conducting experiments, students will learn how to apply their knowledge of chemistry to real-world problems. Additionally, they will gain valuable experience working in a laboratory setting, which is essential for future careers in engineering.
Pre-lab Preparation
Before conducting any experiments, students must complete the pre-lab preparation. This includes reviewing the lab manual, studying the relevant theories and concepts, and preparing for the experiments. It is important to understand the procedures, materials, and safety precautions before starting the experiments.
Experiment 1: Determination of the Formula of a Compound
In this experiment, students will use gravimetric analysis to determine the formula of a compound. They will first react the unknown compound with excess barium chloride to form a precipitate. The precipitate will then be filtered, dried, and weighed. From the weight of the precipitate, students can calculate the mass of the original compound and its formula.
Experiment 2: Chemical Reactions and Stoichiometry
In this experiment, students will study the stoichiometry of a chemical reaction. They will react a known mass of magnesium with hydrochloric acid and measure the volume of hydrogen gas produced. Using the ideal gas law, students can calculate the number of moles of hydrogen gas produced and the mass of magnesium consumed. This will help them understand the relationship between reactants and products in a chemical reaction.
Experiment 3: Spectroscopy
In this experiment, students will use spectroscopy to identify an unknown compound. They will first record the infrared spectrum of the compound and use it to identify functional groups present in the compound. They will then record the visible spectrum of the compound and use it to determine the electronic structure of the compound.
Post-lab Analysis
After conducting the experiments, students will analyze their data and draw conclusions based on their findings. They will write a lab report summarizing their results and explaining the significance of their findings. They will also discuss any sources of error and suggest ways to improve the experiments.
Conclusion
CHE 128LAB – General Chemistry for Engineers Laboratory 2 is an important course for engineering students who want to gain a solid foundation in chemistry. The course provides students with an opportunity to conduct experiments, analyze data, and draw conclusions based on their findings. The experiments covered in this lab help students understand the basic concepts of chemistry and their applications in engineering. They also gain valuable experience working in a laboratory setting, which is essential for future careers in engineering.
By completing CHE 128LAB – General Chemistry for Engineers Laboratory 2, students will be able to apply their knowledge of chemistry to real-world problems. They will also be well-prepared for more advanced chemistry courses in the future.
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