Alana Rogers Date of experiment:11-20-13 Date submitted: 11-23-13 Determination of Water Hardness Using a Titrator Purpose: This purpose of this experiment was to determine the hardness of the local water supply. Be familiar with using a titrator. To tell wether your water is hard or soft. Hard water however does not create a threat‚ but is bad for your pipes causing them to crust. To measure water’s “softness” you are truly measuring the amount of CaCO3 in the water. Procedure: Assemble
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Reactions of some Hydrocarbons Equipment Required: -4 Test tubes -Dropper - Cyclohexane (C6H12) (3ml) - Cyclohexene (C6H10) (3ml) - Toluene (CH3C6H5) (3ml) - Potassium Permanganate solution (KMnO4) .01 mol L-1 (4ml) - Sulfuric Acid (H2SO4) 2mol L-1 (2ml) - Bromine Water (Br2) (5ml) Procedure: Reaction of hydrocarbons with acidified permanganate: 1) Into three separate‚ labeled test tubes place 1 ml of cyclohexane‚ cyclohexene and toluene respectively. 2) In a separate test
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of the Upper Nepean Catchment. The following is a summary of factors that affect water quality. Water may contain several ions‚ namely anions and cations which are toxic to humans. Hardness is the scum on water surface from significant concentrations of calcium and magnesium ions. Total dissolved solids is the measure of dissolved solids that are ionic in water. Turbidity is the presence of suspended solids in water which reduces penetration of light‚ resulting in a decrease concentration of
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~Fulfilling ethical values and islamic virtues~ * Ethics known as moral philosophy‚define ethics as "a set of concepts and principles that guide us in determining what behavior helps or harms sentient creatures. * Virtue is moral excellence. A virtue is a positive trait or quality deemed to be morally good and thus is valued as a foundation of principle and good moral being. Personal virtues are characteristics valued as promoting collective and individual greatness. This has been mention
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Baking Project There are several chemical reactions taking place in the general baking of cakes. Every ingredient has its own function and causes a different reaction Synthesis: * Egg yolks (modify molecule’s structure) helps the oil-based and water-based components of the cake mix together. When eggs are cooked‚ the protein molecules become uncurled when exposed to heat and create new molecular bonds with other nearby protein molecules. When the egg is completely cooked‚ it helps form a
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William ‘Bill’ Shakespeare’s The Tragedy of Hamlet‚ King of Denmark‚ a turn of the 16th century revenge tragedy play‚ is today still a relevant and delving tale‚ that stands as Bill’s reconceptualization of the genre. The genre was popular at the time of Hamlet’s creation‚ and thereby retains traditional elements of a revenge tragedy. However‚ and after adding many dramatic elements‚ a flicker of an Oedipus complex‚ and a touch of humor‚ Bill analyses and explores the revenge tragedy on a more complex
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Answers to Essay Questions: Chapter 8 8. Injured parties can recover damages by suing‚ asserting negligence under the Uniform Commercial Code (UCC). 9. To sue for negligence‚ the plaintiff must establish that the defendant breached its duty of care‚ creating an unreasonable risk to harm and such negligence or carelessness was the proximate cause of the plaintiff’s injury. 10. Strict liability is a liability ascribed to a manufacturer or seller of a defective or dangerous product regardless
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recent decades when people were trying to erase Pereira’s work. In “Erasing Pereira”‚ Alan Hess gives his opinion while addressing‚ “What do California’s cultural institutions have against William Pereira?”. He begins his article by stating that Pereira had gained his name because of his work in the Orange County area‚ which later had been faded and people were misinterpreting the vision of the great architect. Hess says that Pereira had designed UC Irvine with meticulous planning and a very revolutionary
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The Chemistry of Lipids Experiment #8 Objective To observe the solubility of lipids in polar and nonpolar solvents and to compare saturated and unsaturated fats in their chemical reaction with bromine. The percent fat in a food will be determined by extraction of the fat and weighing it. Introduction Lipids‚ by definition‚ are natural substances that do not mix with water but dissolve in organic solvents. There are several classes of lipids‚ including: fatty acids‚ waxes‚ triacylglycerols
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Grayland Martin Period 5 9/4/12 Laboratory 2 Report: Enzyme Catakysis 1. Title • The effect that temperature‚ pH‚ time‚ enzyme concentration‚ and substrate concentration has on Enzyme Catalysis. 2. Abstract • Assess the general functions and activities of enzymes. Analyze the relationship between the structure and function of enzymes. Understand the concept of initial reaction rates of enzymes. Change the temperature‚ pH‚ enzyme concentration‚ substrate
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