color back to normal. In order to determine the identity of several unknowns‚ I will perform flame tests and then use my data and observations. Background In this Unit‚ I am studying the election configurations such as Barium‚ Copper‚ Lithium‚ Potassium‚ and ects. I studied wavelengths in the visible spectrum. I also studied a characteristic color in a flame test and energy changes of electrons. Procedure 1. Put on lab apron. 2. A half amount of water was added to small beaker. 3. The lab
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1.0 INTRODUCTION Flame photometry‚ also referred to as ’flame atomic emission spectrometry ’ is a quick‚ economical and simple way of detecting traces of metal ions‚ primarily Sodium‚ Potassium‚ Lithium‚ Calcium‚ and Barium‚ in a concentrated solution. The process is an extension of the principles used in a flame test‚ with the main differences having more precision in the results‚ and the use of more advanced technology. This report focuses on the theory‚ applications‚ limitations and analysis
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water weight (Grosvenor‚ Smolin‚ 2006). Water is in the cells that make up tissue and organs: even in our bones. The water inside cells is called intracellular fluid and passes through the walls of cells with the assistance of proteins‚ sodium‚ and potassium which are dissolved in the body. This ebb and flow of intracellular fluid controls the levels of dissolved substances in the different compartments of the body. When particle concentrations are too high‚ water flows in to dilute‚ lowering the concentration
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orange red Strontium Nitrate bright orange Copper II Nitrate bright green Copper II Chloride strong light green Sodium Nitrate strong orange Sodium Chloride a soft orange Potassium Nitrate soft peach Potassium Chloride peach with orange outline
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The Lipid Barrier of the Cell Membrane‚ and Cell Membrane Transport Proteins The structure of the membrane covering the outside of every cell of the body is discussed in Chapter 2 and illustrated in Figures 2–3 and 4–2.This membrane consists almost entirely of a lipid bilayer‚ but it also contains large numbers of protein molecules in the lipid‚ many of which penetrate all the way through the membrane‚ as shown in Figure 4–2. The lipid bilayer is not miscible with either the extracellular
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Chapter 1- Introduction Background of the Study: Statement of the problem: The research is generally aimed to determine the effect of sweet potato peelings as soil enhancer. Specific: 1. Is there a change in NPK (nitrogen‚ potassium and phosphorus) in the soil after applying 25‚ 50‚ and 75 grams of sweet potato after the interval of 3 days? 2. Is there a change in the soil ph in the soil’s color after applying 25‚ 50‚ and 75 grams of sweet potato after the interval of 3
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confirmation test to identify specific elements. Procedure: I began the lab by preparing a safe work area and the required metallic ions. The ions used in this lab were as follows: Barium Nitrate‚ Calcium Nitrate‚ Cupric Nitrate‚ Lithium Nitrate‚ Potassium Nitrate‚ Sodium Nitrate‚ Strontium Nitrate‚ and an unknown solution. I placed 0.5 mL of sodium nitrate into a well on the 24-well plate‚ recording its location. I placed 0.5 mL of the other 7 solutions in 7 other wells on the plate‚ recording their
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and intracellular fluids is vital to life. List and briefly describe the kinds of homeostasis involved. 2. Why does maintaining fluid balance in older people require a higher water intake than in a normal‚ healthy adult under age 40? 3. Why does potassium concentration rise in patients with acidosis? What is this called? What effects does it have? 4. Saline solution is used to reverse hypotonic hydration. Are body cell membranes permeable to saline? Explain your response. 5. Explain the renin-angiotensin
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observing in this experiment. Materials: · Nichrome wire wand · Test tubes containing water · Test tubes containing 6M hydrochloric acid as needed to clean wire · Test tubes containing: Copper sulfate Potassium sulfate Copper nitrate Potassium nitrate Strontium nitrate Calcium nitrate Copper chloride Strontium chloride Calcium chloride Cobalt chloride Sodium chloride Sodium nitrate Sodium sulfate Barium clroride Calcium nitrate · Tirrel burner · Matches
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solution the Paramecium were moving forward for about 45% of the time. I was observing them. They changed direction frequently going in a jerking motion and a paranoid state (moving backwards.) They were still going at an average speed. For the Potassium solution the Paramecium were moving forward for 58% of the time. The rest of the time they were changing
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