sappan) WOOD AS TEXTILE DYE PRESENTED IN THE SCIENCE AND TECHNOLOGY DEPARTMENT (SCIENCE CURRICULUM) ILIGAN CITY NATIONAL HIGH SCHOOL ILIGAN CITY SUBMITTED TO: MRS. ANNALLEE Q. ARON RESEARCH TEACHER SUBMITTED BY: Ibrahim‚ Mahalia Taskeen R. Cabugatan‚ Fahad M. Lomansoc‚ Jake G. Miano‚ Ryan I. Surmion‚ Paul Jeffrey S. ABSTRACT Dyes known to the ancients came from plants such as indigo and madder or from the shells of mollusks; today most dyes are made from coal tar
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The starting material for this lab was the dialyzed sample (stored at -20ᵒ C) from the previous lab. The CM sephadex resin (taken in a 50 mL tube) was already made swollen using Buffer C (20 mM HEPES‚ pH 7.9; 1 mM EDTA; 50 mM KCl). The dialyzed sample was thawed to the room temperature and gently poured over the resin. The tube was capped and kept on a rocker at room temperature for 1 hour. The tube was then centrifuged in a HS-4 rotor at 2500 rpm (1200g) for 5 minutes at 4ᵒ C. Supernatant was discarded
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The completed calculations can be found on lab notebook page 14. Using this data‚ graph 2 was generated showing the relationship between the intensity ratio and the concentration of chlorine. Relating to the Stern-Volmer equation of F0/F=1+KSV[Q] and the linear line equation of y = 124x + 1.08‚
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Lab 3 – Biodiversity Demonstration 1: Interdependence of Species Table 1: Interdependence of Species Results Round Species Missing (Bead Color and Name) 1 Blue / Humans 2 Red / Flowers 3 Yellow / Bees 4 N/A POST LAB QUESTIONS 1. Explain how the ecosystem was affected by the missing species for each round of the demonstration. a. Round 1 = Without humans then all progress cease to exist and everything will go in reverse. Humans run pretty much everything and if we just eliminated humans then only
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A long time ago‚ people ate foods that are really safe for their wellness. People also took in a bunch of time to prepare their own nutrients. So those people were not being impressed by the intellectual nourishment that they rusted‚ because all of the foods that they had were natural foods and healthy. Nowadays‚ most of people in the world are extremely busy. Thus‚ It’s no secret‚ that people don’t have time to cook at home. That’s why people prefer to eat foods that are easily cooked or ready
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Objective: The objective of the lab is to separate the caffeine samples we are using‚ using thin layer chromatography. The solvent we are using for the separation is 3:1 mixture of Chloroform and Acetone. Principle: Thin layer chromatography (TLC) is an important technique that is useful for separating organic compounds. TLC is often used to monitor the progress of organic reactions and to check the purity of products. Separations in Thin layer chromatography involve distributing a mixture of
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Food Safety Risk Assessment of NSW Food Safety Schemes March 2009 NSW/FA/FI039/1212 Note: Parts of this document were revised in December 2012 following peer review. Contents Executive summary ........................................................................................................... 6 Introduction.................................................................................................................... 12 Dairy food safety scheme ......................
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| In the last 3 or 4 years‚ many schools in the UAE started selling junk food and fast food to the students. Junk food and fast food is known for causing obesity among people all around the world. As Dubai Health Authority (DHA) public relation agency we will try to raise awareness about the harmful effects of junk food and fast food on people especially the students who still in schools‚ and why junk food and fast food should should be banned in schools across the UAE. Dubai Health Authority
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a 3-by-5-inch print fell from 50 cents for five-day service in 1970 to 20 cents for one-day service in 1984. The same principle applies to the processing of food. And since Olympic Foods will soon celebrate its 25th birthday‚ we can expect that our long experience will enable us to minimize costs and thus maximize profits. The Olympic Foods tries to convince its stockholders through its annual report that it can increase profits as it has long experience. This is supported by comparing with a color
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Chem 106b‚ Section 001 Lab Performed 8th‚ 2012 Lab Report Submitted February 22nd‚ 2012 Abstract The purpose of the lab was to determine the order of reaction for the dye Red #40. By measuring the reaction rate between bleach and the dye‚ the order of the reaction was determined to be first order. Introduction The study of kinetics is important for studying the amount of time it takes for a particular reaction to reach completion. By comparing two solutions of dye that have different concentrations
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