CHEM 2123 and 2125 – Organic Chemistry Lab I and II GUIDELINES FOR WRITING LAB REPORTS INTRODUCTION Writing reports in organic chemistry lab may differ from the way it’s done in general chemistry. One goal of this course is to introduce you to the record keeping methods used in research labs. Such methods are designed to organize experimental data in a format similar to that required for publication in major scientific journals. Here are some important considerations that apply in research settings. 1. Your work is unique, meaning that you might be the only person performing certain experiments. 2. Research is an ongoing process. The projects assigned to you will likely continue after you leave. People assigned to those projects will need …show more content…
Examples are the determination of physical constants such as melting point, boiling point, or density, and instrumental techniques such as infrared (IR) spectroscopy. Sometimes these techniques are referred to as analytical techniques. LAB REPORTS FOR CHEMICAL PREPARATIONS, OR SYNTHESIS This type of report refers to experiments whose main goal is to prepare a pure substance from specific starting materials. This necessarily involves a chemical transformation, or reaction. In the simplest case, there is only one step. The starting materials are combined and a product forms. This product is isolated, purified, and characterized, producing the final outcome of the experiment. In a multistep synthesis, the product of the first step is used as a starting material in a second step, and so on, until a final product is obtained. No multistep syntheses are performed in organic lab I. Some two step syntheses are performed in organic lab II. FORMAT AND GRADING CRITERIA FOR PRELABS AND LAB REPORTS The general format for most prelabs and lab reports is given below. Specific differences with examples will be discussed later. You are expected to include the following items in your lab notebook. All prelabs and lab reports are graded on a 100 point scale with the following distribution. INDIVIDUAL PRELAB (100 pts) Due at the beginning of each experiment. 1 NAME, EXPERIMENT #, TITLE, DATE, INSTRUCTOR,
When your lab report is complete, submit this document to your instructor in your assignment box.
4. While performing your labs, capture and paste all screenshots identified in this Lab Report Template.
Discuss what you did in this lab and what you will cover in the lab
Answer the lab questions for this week and summarize the lab experience using this form.
Procedure: In this experiment, various chemicals were mixed together, to determine a reaction. Using two drops from chemical 1 and two drops of chemical two, unless otherwise stated, then recording the type of physical reaction or color changes that occurred.
Complete Table 1 and answer Post Lab Questions 1 through 3 in complete sentences on the Week Three Lab Reporting Form.
In this experiment, we learned about stoichiometry, empirical formula, molecular formula, polyprotic acids and bases, metathesis reactions, and moles.
The experiment is to observe a variety of chemical reactions and to identify patterns in
Dispense .5 mL water into the already weighed conical vial, replace cap and face insert on its down side.
Atoms are the basic units of matter and all life is based on them. Life on earth is based on the element carbon. It is a highly versatile atom able to form four covalent bonds with itself or other atoms such as hydrogen and water. Atoms combine to form molecules and those that are carbon based are referred to as organic molecules. Organic molecules occur in four different types in living cells; carbohydrates, lipids, proteins and nucleic acids. They are also known as hydrocarbons due to the presence of both hydrogen and carbon. Carbohydrates are made up of carbon, hydrogen and oxygen in the ratio 1:2:1. They are important sources of energy and are classified in three main groups; monosaccharides, disaccharides and polysaccharides.
This seminar was presented by Dr. Alison Frontier of University of Rochester. She is a current chemistry professor and she also runs a website called “Not Voodoo”. In this seminar, she talked about some common lab mistakes that she has discovered after 10 years and shared some useful techniques that help to avoid them.
After you copy, share, and submit your Lab Report: Write your lab report in complete sentences and use paragraphs to organize your ideas. Use your lab handout guide and the Water Quality lab report questions to help you as you write your lab report.
To conduct your laboratory exercises, use the Laboratory Manual located under Course Content. Read the introduction and the directions for each exercise/experiment carefully before completing the exercises/experiments and answering the questions.
1. Purpose ▪ In a couple short paragraphs, explain the scientific reason as to why you are writing this lab report. (What were you supposed to learn?)
This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.