We put the penny into the beaker. After it started to boil‚ we removed the penny from the beaker‚ using tongs. DATA COLLECTION AND PROCESSING: Observations: The color changing process took longer than we had expected. We observed that after putting the penny in the beaker‚ the zinc powder surround the penny‚ which helped it changed its color. We couldn’t complete the experiment so when we took the penny from the beaker‚ the change in the color wasn’t completed. There were some dark spots and
Premium Zinc Primary color Copper
leaf‚ no red stem green leaf‚ and no red stem white leaf. Introduction Genetics‚ which is the science of heredity‚ has four major areas. One of these areas is called transmission or Mendelian genetics‚ which deals with the transmission of genes from generation to generation (Russell 2003). Within this area‚ there are hereditary traits‚ which are controlled by genes. As studied by Mendel‚ genotype and phenotype are both characteristics of an organism. Genotype is the genetic make-up of an organism
Premium Genetics Gregor Mendel Seed
Abstract……………………………………………………………………………………………2 Introduction………………………………………………………………………………………..2 Background………………………………………………………………………………..2 Objectives…………………………………………………………………………………2 Scope………………………………………………………………………………………3 Theory review……………………………………………………………………………………..3 Design of report…………………………………………………………………………………...5 Procedures…………………………………………………………………………………………5 Results……………………………………………………………………………………………..6 Discussion…………………………………………………………………………………………6 Conclusion………………………………………………………………………………………...7 Reference………………………………………………………………………………………
Premium Fluid dynamics
of Chemical Engineering CHME 426 –Chemical Engineering Laboratory III Title Page (Full Report) Title of the Experiment: Reaction through three CSTR in series Submitted by: Group (4) Section: Female 1. Name: Amina Ali ID: 200550284 2. Name: Duaa Tabarak ID: 200553858 3. Name: Mariam Rustom ID: 200552242 Date of experiment: 31st March‚ 2010 Date of submission: 11th April‚ 2010 Grades: Report presentation………………………………………… /15 Abstract and Objective(s)……………………………………/10 Introduction
Premium Sodium hydroxide Chemical reaction
shall use are hydrochloric acid‚ sulphuric acid‚ nitric acid and ethanoic acid. What I already know Magnesium reacts with most dilute acids to give a magnesium salt and hydrogen. For example: Mg + 2HCl Mg + H2SO4 MgCl2 + H2 MgSO4 + H2 I discovered from an A’ level text book (A-level Chemistry by Ramsden) that nitric acid doesn’t usually give hydrogen‚ but may do with magnesium if the acid is cold and dilute. The book didn’t say how dilute the acid had to be. Other products may include oxides of nitrogen
Premium Hydrogen Sulfuric acid Acid
12 Reference 12 Abstract: The purpose of this experiment is to determine how a beam deflects with load and compare the experimental values to the values calculated from the simple formula and exact formula. We take three different eccentricities 75 mm‚ 55 mm‚ 35 mm and gradually apply load to them. Taking readings and making graphs to explain the outcome. This kind of experiment is helpful in construction of railways
Premium Experiment Science Design of experiments
Date of experiment: September 3rd‚ 2013 Organic Chemistry II – CHLB330 Name: Symone MoxeyLab Partner: Lynden Cooper Isolation of caffeine from tea leave Abstract:- Introduction:- Caffeine is probably the most commonly used addictive drug. This drug is found in a number of things ingested by people. It belongs to a group of nitrogen bases called purines. Because caffeine possesses these base-like properties‚ it is described as an alkaloid. They usually taste bitter and often are physiologically
Free Chemistry Solvent Caffeine
Introduction It is crucial in the field of microbiology to study the morphology‚ biological activity‚ and the behavior of microbes thus the isolation of such microbes from the environment is necessary because it allows scientists to study them in close proximity. Microbial life forms are found everywhere. They are major players in biogeochemical cycling of elements and primary producers in numerous environments. There are also some microbes living inside higher forms of organisms that aid in digestion
Premium Microorganism Organism Bacteria
Extraction of Caffeine from Lipton® Tea Leaves Nathaniel Camangon*‚ Kaila Bumagat‚ Franz Mari Burgos‚ Remigio Callanta Department of Chemistry‚ College of Science‚ University of Santo Tomas‚ Manila‚ Philippines Abstract This experiment mainly focuses on the extraction of pure caffeine by multiple extraction from commercially acquired tea leaves and determining its purity by melting point determination. A 0.02% yield of pure caffeine was obtained from 10.4978g of tea leaves (4 tea bags).
Premium Solubility Caffeine Tea
Abstract: This report presents the reason why the ocean does not freeze in the winter. Since the ocean consists of salt water‚ an experiment was done to test the effect of freezing on salt water compared to pure water. The experiment was conducted three times in order to obtain accurate results and eliminate errors. In addition to the salt and pure water experiment‚ a variation of this experiment was created to test other options. In the variation experiment the effect of freezing on sugar water
Premium Water