Salt from green beans Name: Ashni Couprie and Dennise Susanto Class: 5c Introduction From previous experiments we ’ve learned that salt is extracted from green beans. To be more specific: salt is extracted from when the beans are cooked in water in which salt has been dissolved. This experiment is based upon the osmoses theory. According to this theory the cell walls of the green beans are what we call a semi permeable membrane. This membrane only lets water through and not the substance
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CHEM 101L GENERAL CHEMISTRY LAB FALL 2012‚ Friday 1:00 PM-3:50 PM Professor: Dr. Rostislav Bukasov Office: 7107 Office hours: Monday 5:00-6:00 PM; Tuesday 9.00-10.00 AM; Wednesday 11:00 AM–12:00 PM; Thursday 4.00-5.00 PM; Friday 10.00-11.00 AM Phone: 7-7172-706665 E-mail: rostislav.bukasov@nu.edu.kz Teaching Assistant: Zhanar Kassenova E-mail: zhanar.kassenova@nu.edu.kz Office : 8527 Office hours: Tuesday: 11.00 - 12.00 pm; Thursday: 9.00 am - 10.00 am Course Overview Chemistry
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Title : The movement of substances across a semi permeable membrane Objective : To study the movement of substances across a semi permeable membrane Problem statement : What factor influences the diffusion of substances through a semi permeable membrane? Hypothesis : The diffusion of molecules across a semi permeable membrane is based on the size of the molecule Variables: a) Manipulated : Size of solute molecules b) Responding : Colour of solution c) Fixed : Temperature and time
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[pic] [pic] [pic] Jan- May’2012 Compiled by: Sr. Lect. Prachi Dewan ECE Department GTBIT. LIST OF EXPERIMENTS (Electrical Science Lab-I) Branch:- EEE /ECE 1. Introduction to various Basic Instruments of Electrical Science 2. To verify Superposition Theorem. 3. To verify Thevenin Theorem and find out Thevenin’s Equivalent circuit using DC Sources. 4.
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body parts: head‚ thorax‚ and abdomen One prominent pair of antennae Eyes Seven pairs of legs (14) Paired appendages at end of abdomen called uropods Color varies grey to white * Male and Female: Females have pouches at bottom of legs for eggs Males have first two appendages * Immature: Look like adults‚ except smaller in size. * Food: Omnivores or scavengers feeding on dead or decaying plants or animals. Some may eat live plants. * Habitat: Breath with gills‚ need a moist
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Good Shepherd International School International Baccalaureate Diploma Programme Chemistry HL Lab Report Determining the Candidate Name: Kamalia‚ Ujjwal Candidate Number: 001350-035 of in an Egg Shell Candidate Name: Kamalia‚ Ujjwal Candidate Number: 001350-035 Table of Contents 1. Teacher’s Instruction………………………………………………………………….......2 2. Research Question………………………………………………………………………...2 3. Variables…………………………………………………………………………………..2 4. Principle Used……………………………………………………………………………
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Beers Law and Calorimetry Purpose: The purpose of this experiment is to apply Beer’s Law by analyzing samples provided by Q laboratory to determine their absorbance and prepare a Beer’s law plot. Molarity of these samples was also calculated to determine concentration and percent error rate. Students also analyzed the concentration of blue dye #1 to determine the concentration of blue dye #1 in a commercial blue dye drink. Procedure: To drop solutions into the test tubes and then determine the Beer’s
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The Twin Experiments was conducted by Josef Mengele‚ during World War 2 in Auschwitz. Dr. Mengle was a medical researcher who was fascinated with twins in specific. From the three thousand children that would be pulled from the masses of people upon arriving only about 200 survived. Age didn’t matter‚ yet most were children‚ and if they were really young their mother would be allowed to stay with them. The twins recieved "special" treatmeant as they were allowed to keep their hair and clothes. A
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The prevalence of high school drop outs is increasing alarmingly. This is the government concern because today statistics show that there is high rate of high school drop out all over the United States. Because of this the US government is finding ways to avoid this threatening situation to get worse. High school drop outs are not a very good sign for their country’s future. Increase of drop out would mean an increase in rate of people who are not fit to jobs which require graduation gown cap.
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UTAR FHSC1134 Inorganic Chemistry Trimester 3 Experiment 1 ________________________________________________________________________ Title: Investigating the Properties of Period 3 Oxides Aim: To examine the oxides of Period 3 elements and describe their structure and bonding. Introduction: Generally‚ there are oxides of metals and non-metals. Metals burn in oxygen to form basic oxides while non-metals form acidic oxides. Structurally‚ they are covalent or ionic compounds. You are to
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