Title: What is the effect of acidic substances on the mass of curd formation? Purpose The purpose was to determine if lemon juice or if vinegar produced more curds. Background Information Curds were formed by a change in pH or by a change in temperature of the milk. Milk has a pH of 6.6 approximately‚ and at this pH the proteins were able to repulse each other‚ creating a negative charge. One of the proteins in milk is called casein‚ which when an acid of a lower pH than 6.6 was added‚ it will
Premium Milk Cheese Chemistry
AP Lab #5 Plant Pigments/Photosynthesis I. Identifying the Effects of Different Variables of Light and Carbon Dioxide on the Rate of Photosynthesis and Observing the Separation of Pigments Through Chromatography II. Introduction Plants have a variety of pigments‚ all of which absorb a different color of light. The three main pigments are chlorophyll a‚ chlorophyll b and carotenoids. Chlorophyll a is the primary plant pigment that absorbs red and blue light‚ which ultimately appears green to the human eye
Premium Photosynthesis Light Plant
Proteomics is the study of proteomes‚ which are groups of proteins in living systems. It is used to examine when and where proteins are being expressed‚ rate of degradation‚ modifications‚ how they interact with other proteins and more. The goal in this lab was to determine the similarities and differences in muscle proteins among 5 species of fish using SDS-PAGE and Western blotting. First‚ proteins are separated based on size. Second‚ antibodies are used to detect the protein of interest. Lastly‚ a substrate
Premium Protein DNA Gene
Mirror Lab One air inhalation hazard I observed during the Mirror Lab tour was for rhodite 906. In a large open room and workspace‚ the mirror lab utilized rhodite frequently to polish large new mirrors. This is concerning because this is a hazardous dust particle with its particle size at about 1.5 micrometers. The movement of these particles are heighted by water mist placed above the mirror to keep the rhodite from solidifying. The employees also sprayed down the mirror frequently which further
Premium Employment Material safety data sheet Occupational safety and health
Purpose=The purpose of this lab was to combine reactants‚ which we would pick ourself‚ to make 2 grams of Copper Phosphate and another product. Background: Chemistry is the branch of science that deals with the identification of the substances of which matter is composed. Chemistry has to do with many things we use today. For example‚ fireworks are made by the chemical combining magnesium‚ titanium‚ copper‚ aluminum‚ strontium‚ or other periodical elements. Things also like making plastic‚ jewelry
Premium Chemical reaction Stoichiometry Reagent
LAB 12 Introduction In this lab you will use the Wireshark packet analyzer to capture and display the control information and data stored in packets transmitted over a network. Wireshark collects network traffic data and creates files that display packet header information in a layered format like that used by the Internet model. These layers can be expanded to view details that may prove helpful in determining the source of problems that your network might be experiencing. Creating filters that
Premium Internet Protocol IP address Transmission Control Protocol
Use a study guide only please and note two of the answers are wrong regarding conversions.!! Up to you to figure which ones. Just know its nice to compare answers to see if your on the right track. LAB 1 1. Describe the function of the following pieces of safety equipment and how each might be used: (10 points) a. Eye Wash (2 points) a. The function of the eye wash station is to flush your eyes of any chemicals or other harmful liquids you may have gotten in your eyes. You would
Premium Temperature Scientific method Celsius
This lab report will be detailing the steps taken and the results discovered when using spectrophotometry to determine the percentage of copper in a copper-clad penny and the thicknes of the copper layer on the copper-clad penny. After 1982‚ copper coating has been used in the creation of the penny because the cost of pure copper has increase to the point that the amount needed t omake a penny cost far more than the actual value of the penny. This lab allowed us to see just how much copper coating
Premium Chemistry Spectroscopy Ammonia
Purpose The purpose of this catalase lab is to design simple experiments to demonstrate how various factors affect the rate of enzyme activity. This lab shows how the enzyme decomposes in hydrogen peroxide. Methods and Materials Refer to handout attached to the back of lab Observations Table 1: The mL of oxygen produced with increase of catalase 30secs 60secs 90secs 120secs 150secs 180secs Disks: 2 17ml 16ml 21ml 26ml 31ml 35ml Disks: 4 8ml 19ml 27ml 35ml 44ml 53ml
Premium Catalase Oxygen Hydrogen peroxide
Microbiology-2460 Lab-003 March 31‚2008 Lab Report-Escherichia coli Abstract The purpose for this lab report was to identify and inform of an unknown bacteria that has been causing a patient to have lower abdominal and pelvic pain. To obtain the identification of this unknown bacterium‚ several biochemical tests needed to be performed in order to prescribe the correct medication to treat and cure the symptoms. Introduction In a lab today‚ I am to identify an unknown bacterium that is
Premium Escherichia coli Bacteria