each marked. You must then calculate the density of an unknown metal and determine its identity based on your data from your known samples. Reagents: None Equipment: Lead Copper Zinc Triple Beam Balance Graduated cylinder Unknown metal (Magnesium) Beaker Calculator Procedures Preparation: We observed the given equipment‚ and then placed 100 Ml of water into a graduated cylinder. Zinc 1. We then placed a sample of Zinc in the graduated cylinder. 2. The water level rose 4 ml. We
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Honors Chemistry Final Exam Study Guide Multiple Choice- (51 points @ 1/2 point ea.) Identify the letter of the choice that best completes the statement or answers the question. ____ 1. The pair of elements that forms a bond with the least ionic character is |a. |Na and Cl. |c. |O and Cl. | |b. |K and Cl. |d. |Mg and Cl.
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atm‚ V is the volume in Liters‚ n is the number of moles‚ R is the constant 0.0821(atm*L/K*mok)‚ and T is the temperature in Kelvins. In this lab the volume of reaction space needs to be measured. I have chosen to use Magnesium and the amount of H2 gas that the amount of magnesium‚ (.04g)‚ used is 0.00229 mol H2. Procedure 1. Fill a 125 mL flask with 50 mL of HCl (aq) 2. Obtain and set up the pressure sensor 3. Record intial temperature‚( room temperature) 4. Take the initial pressure and
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BSc Pharmaceutical Technology Practical - No 5 Preparation of a Primary Standard Solution Aim: to prepare a standard solution of pure silver nitrate and use it to determine the concentration of chloride ions in a sample of tap water and another sample of bottled water. Chemicals: * High grade purity silver nitrate * Potassium chromate indicator * Tap water * Bottled water * Distilled water Apparatus: * Laboratory oven * Dessicator * Conical flask
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Selective Precipitation of the Barium Magnesium Group ABSTRACT The purpose of this lab was to identify the cations from the barium magnesium group present in an assigned unknown solution through selective precipitation. This was a qualitative lab where the theory of the common ion effect was used in several steps. Once the experiment was completed‚ it was determined that unknown solution #4 contained Ba2+‚ Sr2+‚ and Mg2+ ions. INTRODUCTION Selective precipitation is a part of chemistry
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! Isolation of the Components of BC Powder Introduction Aspirin‚ Caffeine and Salicylamide were extracted from an over-the-counter pain reliever (BC Powder). These components were separated by manipulating their solubilities by adjusting the acidity and basicity of the solution. By doing this‚ the three components were forced into conjugate acid (or base) forms‚ causing selective solubility in either an aqueous or organic solvent. These layers were then separated by use of a separation funnel
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CHOCOLATE GOOD FOR YOUR HEALTH As you hear the name “chocolate” your mouth waters! You are allured by the delicious and stimulating taste of chocolates. At the same time you are worried about the harmful effects of eating too much chocolates. But you must know that recent studies have proven that chocolates high in cocoa solids provide potential health benefits. So toss up good health and nutrition by treating yourself with chocolates! Presently scientists are beginning to disapprove some
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Pregnancy Induced Hypertension (PIH) What is high blood pressure? Blood pressure is the force of blood pushing against blood vessel walls. The heart pumps blood into the arteries (blood vessels) that carry the blood throughout the body. High blood pressure‚ also called hypertension‚ means that the pressure in the arteries is above the normal range. What is pregnancy-induced hypertension? Pregnancy-induced hypertension—which may also be called pre-eclampsia‚ toxemia‚ or toxemia of pregnancy—is
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determine the hardness of the water sample. At the end of the experiment‚ the results indicated that the mineral sample water has large amounts of calcium and magnesium ions—an implication of a hard water sample. INTRODUCTION Water hardness is a measure of the amount of calcium and magnesium present in sample water[1]. These calcium and magnesium ions have the capacity to replace sodium or potassium ions and form sparingly soluble products or precipitates.[2] Water hardness is involved in various aspects
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reasons the ketone diet is beneficial for treating inflammatory disease is because it reverses the effects of the SAD diet. August McLaughlin from Livestrong says‚ “High-glycemic carbs can cause blood sugar irregularities and trigger or worsen inflammatory responses.” (Carbohydrates and Inflammation). High carb diets are creating all of this metabolic derangement with inflammatory responses. Switching from the standard american diet to the ketogenic diet drastically improves symptoms of inflammatory
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