How sodium chloride concentration affects the germination‚ growth and development of Brassica rapa. Osumi‚ K.‚ Nihei‚ B.‚ Takanishi‚ K.‚ Nakamura‚ C.‚ Warehime‚ R. Period 2. 03/05/17 Introduction: To have a successful germination‚ the plant seed needs a sufficient amount of water and oxygen present. Other conditions include room temperature‚ and the amount of light intake. Hydration of a seed‚ is an essential step for seed germination (Martínez-Andújar‚ 2014). Plants tend to germinate better in
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Analyzing a Web Page The website that I chose to evaluate is the United States Department of Health and Human Services or (http://www.hhs.gov). This website is about helping the American citizens get help that they need by putting the information on their website that will guide them in getting assistance. After reviewing the materials on how to analyze a web page‚ I realized there is much more to website than what most people see on the surface. According to Widner University and Wolfgram
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Sodium is a metal from group 1 of the periodic table‚ this is a metal which reacts when it needs to‚ this metal has a low melting and boiling point‚ also it is very dense‚ this shows that when reacting with other substances it will be different and this is because it will not react the same the whole time. The other thing is that this elements electron configuration is 11 which is quite low when comparing them to the other elements in the periodic table. However this metal is more reactive than
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Standardisation of a Solution of Sodium Hydroxide: Introduction: In a lot of cases it isn’t possible to prepare a solution by accurate weighing of the solute‚ dissolving in water and diluting to volume. There are many possible reasons for this‚ but in the case of sodium hydroxide‚ the solid absorbs moisture from the air‚ and also reacts with carbon dioxide from the air. In that case‚ it cannot be accurately weighed in air. In an experiment like this‚ a solution of the approximate required concentration
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Title: Preparation and Standardization of a Sodium Hydroxide Solution Objective/Purpose: The objective of this experiment will be the standardization of sodium hydroxide using potassium hydrogen phthalate by the titration method. Introduction: The concentration of solutions can be reported in terms of molarity and normality. Molarity is equal to: HCL‚ HBR‚ H2SO4‚ HNO3 M = mol Solute (mol) (Monoprotic) (Diprotic) _______________ V(L)g solutions (L)
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meeting the third sibling‚ Thaila. They start talking about true names‚ a name that someone feels is theirs‚ even if they were given a different name. It is at this point that our narrator is given a name‚ one that she believes is her true one‚ River Page. River quickly became best friends with Summer and her siblings‚ and was completely
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Group Adidas: Eric‚ Johnny‚ Brian‚ James‚ Regene Marketing Plan Outline 11/9/12 Executive Summary: * A change that requires consideration is buying out or merging with other brands such as Nike or Jordan like they did with Reebok. This would result in a high demand for the customers’ dream products such as Nike-Adidas‚ Adidas-Jordan‚ or Jordan-Reebok sneakers. * For example in Hockey the brands Nike and Reebok merged as did Nike and Bauer. This resulted in customers who were loyal to their
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Celiessa Pangan Period 2 11 - 14 - 14 I chose James Carter Jr. as my President because he is democratic and I like how the way that democrats treats the public people. James Earl "Jimmy" Carter Jr. is an American politician and member of the Democratic Party who served as the 39th President of the United States from 1977 to 1981 and also in his term of presidency he created the Department of Education and Department of Energy that is really important because education helps people to be successful
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concentrations. Scientific Background: Vinegar is an acid and there fore can be neutralised by an alkali. Acid + Alkali à salt + water Hydrochloric acid + Sodium Hydroxide à Sodium chloride + water Vinegar is a weak acid and therefore it only partially ionises in solution. CH3COOH ßà CH3COO- + H+ An alkali such as Sodium Hydroxide has a formula NaOH. If the alkali is strong then it ionises fully in solution. NaOH ßà Na+ + OH- When the acid H+ reacts with the alkali OH- the
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Standardization of hydrochloric acid by sodium carbonate Concentrated hydrochloric acid is roughly 11 M. Pour out into a measuring cylinder about 2 cm3 of concentrated hydrochloric acid. Transfer it to a 250 cm3 flask and make up to the mark with water. Shake well. Put some pure sodium hydrogen carbonate or anhydrous sodium carbonate into an evaporating dish and heat gently over a low flame for about fifteen minutes‚ stirring continuously. Take care not to heat the mass too strongly or fusion
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