Title : Properties of hydrocarbon Objective : 1) To study the properties of hydrocarbons. 2) To determine the unknown samples. Results : Part A : Combustion Compounds Observations Hexane There was orange flame and burned mildly during the burning process. No soots and smoke were produced. C6H14 + 19/2 O2 6CO2 + 7H2O Cyclohexene Orange flame burned vigorously. A small amount of black soot and smoke were produced during the burning process.
Premium Hydrocarbon Carbon Functional group
Purpose: The purpose of this lab was to determine the freezing point of pure water‚ the experimental van’t Hoff factor for a substance and the molar mass of an unknown solution. Reagents: 25mL deionized Water ¼ to ½ inches of rock salt 25mL Sodium Nitrate (NaNO3 ) 25mL unknown solution – handle unknown solution carefully Procedure: For part 1‚ the freezing point of deionized water was determined. An ice bath was prepared by filling a 600mL beaker ¾ full of ice and covered with ¼ to
Premium Concentration Chemistry Water
The Feeding Behavior of the Protist known as Tetrahymena vorax Abstract The purpose of this experiment was to study the rate of phagocytosis of the specific protist known as Tetrahymena vorax. This certain kind of protist feeds at a normal rate when conditions are normal. We began the experiment of understanding how Tetrahymena feeds at normal temperatures. Doing so‚ we allowed the Tetrahymena to feed at specific time limits and then killed the protist with gluderaldheyde to detect how much
Premium Temperature Scientific method Time
THERMOPHYSICAL‚ AND RHEOLOGICAL PROPERTIES OF FRUITS AND FRUIT PRODUCTS 4.1. INTRODUCTION Most processed and many freshly consumed fruits receive some type of heating or cooling during handling or manufacturing. Design and operation of processes involving heat transfer needs special attention due to heat sensitivity of fruits. Both theoretical and empirical relationships used when designing‚ or operating‚ heat processes need knowledge of the thermal properties of the foods under consideration
Premium Heat Heat transfer Thermodynamics
GCSE Biology B General Certificate of Secondary Education Unit B731/02: Modules B1‚ B2‚ B3 (Higher Tier) Mark Scheme for June 2012 Oxford Cambridge and RSA Examinations OCR (Oxford Cambridge and RSA) is a leading UK awarding body‚ providing a wide range of qualifications to meet the needs of candidates of all ages and abilities. OCR qualifications include AS/A Levels‚ Diplomas‚ GCSEs‚ OCR Nationals‚ Functional Skills‚ Key Skills‚ Entry Level qualifications‚ NVQs and vocational qualifications
Premium Hypertension Heart Blood
The Justification of Private Property Property Law JURI 25066EL Ryan Waschulzik 0271075 March 4th 2015 Words: 1772 Pages: 8 The notion of property is one that has long preceded us‚ or anyone we know. We know that the earliest social theory of property originated in the works of Saint Thomas Aquinas who had said that humans have a natural right to the use of or ownership of an unspecified amount of property. He also said that the amount of property to which you are entitled‚ is based
Premium Property John Locke
proposal Which type of research path? What do you examine? Variable (independent/dependent/intervening) What do you examine? Hypothesis‚ null hypothesis‚ alternative hypothesis What type of explanation? Causal explanation: you need a control experiment Avoid spuriousness How to look for patterns in the data Quantitative/qualitative data Chapter 4 How and why do samples work? Sample Population Random sample Four types of non-random samples Convenience sample Quota sample Purposive/Judgmental
Free Sampling Simple random sample Scientific method
The Experiment Gloria Isham Central Texas College Twenty- six men are chosen to participate in the roles of guards and prisoners in a psychological study led by a Doctor Archaleta for which each participant is to receive $14‚000 after two weeks. Travis has just lost his part time job and is a peace protester who wants to travel to India with his girlfriend. Barris is a 42-year-old who lives alone with a domineering mother‚ who has made him join the experiment to raise money for her hip operation
Premium Social psychology Cognitive dissonance Cognition
Biology Revision Notes Biochemical Tests: Proteins - add biurettes reagent to the sample. If protein is present‚ clear colour change from blue to purple. Reducing Sugars – add Benedict’s reagent to the sample. Heat in Bunsen or water bath. If reducing sugars are present‚ clear colour changes from blue -> orange red precipitate. Lipids – dissolve sample in ethanol. Slowly pour the solution into the water slowly. If lipids are present a white emulation forms on the surface. Starch – add iodine
Premium Immune system Enzyme Bacteria
first compound microscope was made by Hans and Zacharias Janssen 1665 – Robert Hooke observed cork cells using a compound microscope and described ‘cells distinct from one another’ 1676 – Anton von Leeuwenhoek described unicellular organisms in pond water 1831 – Robert Brown – observed the nucleus in plant and animal cells 1839 – Schleiden and Schwann formulated the cell theory that all living things are made up of cells. Schwann was the first scientist to see yeast cells producing new cells 1858
Free Cell Eukaryote