bottle - Sodium Chloride Method: 1. Clean the copper‚ M(1)‚ M(2) and M(3) before starting the experiment. Sand with a fine grade sand paper to take off the outside coating. 2. Add 100 ml of one matching electrolyte with the matching metal electrode in one of the beakers. 3. Add 100 ml of copper nitrate with the copper electrode in another beaker. 4. Attach the electrodes to the voltmeter. 5. Roll a lengthy piece of paper towel and wet it with sodium chloride (salt bridge )
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Goal: to post about 10 chemicals‚ what they do‚ and how they are used Total Word Count In This Document: 1531 Title: ?10 Chemicals? Menthol Menthol is a synthetically-made organic compound extracted from natural plants like corn mint‚ peppermint‚ and other mint oils. It is a waxy and crystalline substance that is either clear or white in color. Due to its local anesthetic and counter-irritant qualities‚ it is widely used for a variety of purposes like soothing minor throat irritations‚ such as
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produced on evaporation‚ but rather in the form of ions‚ the basic elements and the acid radicals being separated‚ nevertheless it is customary and convenient to consider them as combined into the form of salts. Among these‚ common salt‚ or sodium chloride‚ makes up the bulk of the material‚ being nearly 78 percent of the total mass of salt‚ or over 27 mille (thousand) of the salinity (which is taken as 35 in round numbers). In the accompanying table the composition of sea water salts is given in
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reaction. Also when they have more energy there will be more chance of the collisions being successful because the activation energy will be attainable. Hypothesis: In a reaction between calcium carbonate and hydrochloric acid‚ the products calcium chloride‚ carbon dioxide and water are formed. I predict that the higher temperature of HCl acid‚ the higher the reaction rate will be‚ this is because at a higher temperature there will more fast-moving hydrochloric acid molecules per set volume. This means
Free Chemical reaction Chlorine Carbon dioxide
this part is through we will then need to find the percent yield (actual yield/theoretical yield x 100). Determining the mass of sodium chloride at the end of the experiment is the actual yield. To find the theoretical yield we will need to heat the sodium chloride so that all the CO2 evaporates and that will leave us with the theoretical yield of sodium chloride. Chemical Reactions NaHCO3 + HCl = NaCl + H20 + CO2 Na2CO3 + HCl = 2NaCl + H2O + CO2 Theoretical yields .15g NaHCO3 (1mol NaHCO3/84
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The Salt Sector of Pakistan | API Final Report | BBA 4 | Date of Submission:June 11‚ 2012 | Submitted to: Ms. Tahira Jaffery | Submitted by:Fariha KhalidHafsa AlviSundus IftikharSyeda Hafsah HasanSyed Aqib Shah | Executive summary The purpose of this report was to examine the export related problems prevalent in the salt sector of Pakistan. Research for this report included interviews with the salt exporters and manufacturers in Pakistan. We interviewed‚ Mr. Ismail Suttar of Hub Salt
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a substance. (ex: NaCl) ▪ formula unit= lowest whole number ratio of ions in an ionic compound. (In sodium chloride‚ it is 1:1‚ one to Na+ to each Cl-) ▪ Most ionic compounds are crystalline solids at room temperature ▪ component ions in such crystals are arranged in repeating 3D patterns. ▪ In NaCl‚ each sodium ion is surrounded by six chloride ions‚ and each chloride ions is surrounded by six sodium ions. ▪ Large attractive forces of ionic compounds result in stable structures
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The effect of ATP (adenosine triphosphate) on bioluminescence in fireflies. Introduction Adenosine triphosphate‚ also known as ATP‚ is the supply of energy found in every cell that we need in order to do essentially everything (Anonymous‚ 2008). It is an energy source for biochemical reactions such as muscle contraction‚ active transport‚ molecular synthesis‚ and in fireflies‚ also known as lightening bugs‚ bioluminescence (Biology Book). Bioluminescence is the process in which living organisms
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FACTORS AFFECTING THE LYTIC ACTIVITY OF LYSOZYME ’ A. N. SMOLELIS" AND S. E. HARTSELL Laboratories of Bacteriology‚ Department of Biological Sciences‚ Purdue Univer8ity‚ Lafayette‚ Indiana Received for publication October 28‚ 1951 Since the initial discovery of lysozyme by Fleming (1922)‚ nuimerous attempts have been made to describe the properties of this enzyme. The absence of a reliable method for the determination of enzymatic activity‚ however‚ has contributed to the incompleteness and
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out the actual yield vs. the theoretical yield and to calculate the percent yield. Procedure First‚ 1.0 g of CaCl2·2H2O was put into a 100-mL beaker and 25 mL of distilled water was added. The two ingredients were stirred to create a calcium chloride solution. Then‚ stoichiometry was used to determine how much Na2CO3 was needed for a full reaction: First‚ 1 g of CaCl22H2O was converted to moles: 0.00680 moles. The mole ratios of CaCl22H2O and Na2CO3 was seen to be 1:1. Then‚ moles of Na2CO3
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