Section 2.4: Determination of Percent Ammonia For this procedure, the purpose was to determine the percent ammonia within our unknown synthesized compound. First, boric acid was dissolved inside of a flask that was then placed inside of a large beaker. For one solution, 0.3768 grams of the violet cobalt sample was incorporated into a separate flask along with solid sodium hydroxide. With the aid of glass tubing, the rubber stopper end of the tub sealed the flask containing the cobalt
of the chromatography lab is to separate mixtures using horizontal paper chromatography and ascending chromatography. Using these methods the individual colors within a black dye will be separated and two unknown metal ions in can be identified from a solution. Skills required for this lab are analyzing, identifying unknown separable mixtures. Paper chromatography works majorly on capillary attractions. Capillary attraction depends on adhesive and cohesive forces. This report describes the experiment
right but also an obligation to report Dr. Edward Taub of scientific misconduct if it had been committed. Depending on his intentions Pacheco could have two reasonable expectation. If Pacheco had entered the lab to simply ensure that the research animals were being treated within the laws and ethics of research science then it would be expected that Pacheco would find that the lab was run correctly and that he would not press charges. However, If Pacheco had entered the lab with the intention to create
BASIC TESTS FOR IDENTIFICATION OF BACTERIA GRAM STAIN A. SMEAR PREPARATION The preparation of a smear is required for many laboratory procedures, including the Gram-Stain. The purpose of making a smear is to fix the bacteria onto the slide and to prevent the sample from being lost during a staining procedure. A smear can be prepared from a solid or broth medium. Below are guidelines for preparing a smear for a Gram-stain. Safety • Wear gloves • Avoid aerosols • Care must be taken when heat fixing
Unknown Number 16 – Salmonella typhimurium Cindy Chai Rutgers University Microbiology for the Health Sciences Abstract This lab report was performed to identify the unknown organism, number 16, through various laboratory tests and techniques. The laboratory tests generated some critical results that suggested the unknown culture was Salmonella typhimurium. Some of the tests that led to the identification of the unknown organism included: the EMB agar plate that resulted as negative for lactose
Mesocosm Design Lab (Practical #5) Anshul Krishnan : 11M Task: Design, set up, monitor and evaluate a sealed mesocosm, with a view to achieving a sustainable model. ———————————————————————————————————————— Defining The Problem: A Mesocosm is a designed natural environment which can be manipulated and can be controlled. The Main purpose of building a mesocosm is to be able to observe nature’s balance without human intervention; something that has been destroying our planet’s environment since
Mixed Unknown Bacteria Lab Report Biology 2460-002 Jamuna Kadariya November 24, 2014 Unknown number: thirty-four I. Abstract There are many types of bacteria and they produce different enzymes. However, some bacteria can produce same enzymes. In order to identify the particular enzymes produce by each bacteria specific test needs to be done. Among various types of enzyme producing bacteria, gram- negative and gram-positive bacteria are given priority in our experiment. There are four main types
BIOFUELS Two problems roused the world’s concern in recent years. One is energy crisis caused by the squandering of petroleum fuel. Second problem is environmental problems such as greenhouse effect, global warming, etc. To deal with such problems, renewable sources, utilization technology and bioenergy production technology have been developed. Bioethanol as one of the biofuel can be blended in different proportions in automobiles with gasoline. Biobutanol is also a new biofuel (Liu, Wang, & Zhang