amounts of glucose‚ amino acids‚ urea‚ and salts in urine. To test this we used different chemicals that would react with one of the four items above showing either a high concentration or low concentration within the urine. By using a solution called silver nitrate we could test whether or not salt was present in the urine. If the urine turned a cloudy white after adding the silver nitrate the urine had a high concentration of salt. To test for amino acid we used a chemical called biuret solution. If
Premium Water Enzyme Chemistry
The presence of carbohydrates in a solution can be determined by a qualitative test of Molisch test. Molisch test is a general‚ sensitive chemical test and positive for all kinds of carbohydrates which in free form or in combined form. The test is based on the dehydration of the carbohydrate by concentrated sulfuric acid to produce an aldehyde which condenses with two molecules of phenol‚ resulting in a coloured compound. Molisch reagent is a solution of α-napthol in 95% ethanol. The aldehydes produced
Premium Glucose Carbohydrate Nutrition
Tensile Testing Of Metallic Materials 概要： Tensile testing of metallic materials is specified according to European EN 10002 standard. In this article the terms‚ definitions and designation for tensile test made at ambient temperature is described. The test involves straining a test piece in tension‚ generally to fracture‚ for the purpose of determining mechanical properties. Tensile testing of metallic materials is specified according to European EN 10002 standard. This standards consists of five
Premium Tensile strength Elasticity
condition (listed from left to right in the table) ranged from: 19.6-59.2%‚ 11.8-76.0%‚ 25.0-92.3%‚ and 12.5-89.8%‚ respectively. From this‚ we can generally see how the data from each group is spread out across each ligation condition. Table 2. ANOVA test results. The p-value corresponding to the F-statistic is lower than 0.05‚ suggesting that one or more treatments are significantly different. We can see that the treatments that are significantly different are the 1:1 with stuffer and 2:1 without stuffer
Premium Escherichia coli DNA Bacteria
School of the Sacred Heart of San Jose City 2126 Maharlika Road‚ Abar 1st‚ San Jose City SECOND QUARTER TEST SCIENCE 3 A. Y. 2013 - 2014 ______________________________________________________ ---------------------------------------------------------------------------------- ______________________________________________________ Score: _________ I. Check (√ ) the proper ways to take care of plants and cross ( x ) that do not. ________1. Water
Premium Seed Plant Embryo
apply a low level of stress to a material; the material initially exhibits elastic deformation. In this region the strain that develops is completely and quickly recovered when the applied stress is removed. However‚ as we continue to increase the applied stress the material begins to exhibit both elastic and plastic deformation. The critical stress value needed to initiate plastic deformation is defined as the elastic limit of the material. In metallic materials‚ this is usually the stress required
Premium Tensile strength Elasticity
10 Test Tube Mystery Introduction: The students were handed 10 test tubes with no identification. The students were supposed to design a method in determining what chemical was in each test tube. The list of chemicals is CuSO4‚ NH4Cl‚ NaOH‚ AgNO3‚ KI‚ H2SO4‚ NaBr‚ CaCl2‚ HCl‚ and Pb(NO3)2. The students are expected to determine the chemicals using physical properties‚ litmus paper‚ solubility‚ and the process of elimination. Physical properties‚ such as the color‚ can be determined by sight. Litmus
Premium Management Project management Marketing
1240682 DATE EXPERIMENT Wednesday 07 February (Week 2) PERFORMED: DATE OF SUBMISSION: Friday 15 February (Week 3) Declaration In submitting this report‚ I hereby declare that‚ except where I have made clear and full reference to the work of others‚ this submission‚ and all the material (e.g. text‚ pictures‚ diagrams) contained in it‚ is my own work‚ has not previously been submitted for assessment‚ and I have not knowingly allowed it to be copied by another student
Premium Tensile strength Elasticity Hardness
NEWFOUNDLAND FACULTY OF ENGINEERING AND APPLIED SCIENCE Engineering: 4312 Mechanics of Solids I Lab Test #4 – Torsion Test OBJECTIVES: To carry out a torsion test to destruction in order to determine for a 1020 carbon steel rod specimen: 1. The modulus of rigidity‚ 2. The shear stress at the limit of proportionality‚ 3. The general characteristics of the torque‚ angle of twist relationship. REFERENCES: 1. Hibbeler‚ R. C. "Mechanics of Materials"‚ Prentice-Hall‚ 7th Edition. 2. Instruction
Premium Force Shear strength Shear stress
Professor Molumby TA: Katie Medieval Science Introduction Not all scientific paradigms are correct. In order to understand‚ there must be experiments to prove whether a hypothesis is correct or incorrect.To prove whether a hypothesis is correct there must be physical evidence. In this lab will be looking at the different scientific paradigms to see if they are correct. In this lab we conducted a scientific test of astrological predictions‚ test for psychic abilities‚ test the conception that quartz has
Premium Scientific method Astrology Quartz