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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t-Pentyl Chloride is a compound that is created through an SN1 nucleophilic substitution reaction in addition with Hydrogen Chloride in order to isolate the product. A variety of procedural techniques were utilized during the experiment including extraction‚ washing liquids‚ drying liquids‚ gravity filtration‚ and simple distillation. When a single solute or compound is transferred between two different solutes‚ it is known as extraction. Another technique that was utilized was washing‚ in which
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Name ___________________________________________ Date ___________________________________ Block ____ Experiment 12A Investigating chemical equilibrium ABSTRACT 1. What is equilibrium and how can you tell it has been reached? __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________
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varies between 5 and 100 ptb. Chlorides Crude oil brine analysis varies‚ with 75 percent sodium chloride‚ 15 percent magnesium chloride‚ and 10 percent calcium chloride considered average. Chloride salts are the source of hydrogen chloride that is evolved during distillation. Magnesium chloride is the most prolific producer of HCI with calcium chloride and sodium chloride ranking second and third‚ respectively‚ in HCl production. As the concentration of a chloride decreases‚ the evolution rate
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Objectives: 1. To make careful measurements of the amounts of each reactant. 2. To calculate the number of moles of each reactant. 3. To predict which reactant is in excess. 4. To use drawings to relate microscopic events‚ to write a chemical equation that represent those microscopic events. 5. To learn how to measure the volume of a liquid using a buret. Prelab Questions: 1. Calculate the number of moles in 2.65g of zinc. 2. Calculate the number of moles of hydrochloric acid
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Materials in Our Daily Life : 95 : 21 Materials in Our Daily Life The basic aim of science is not only to study and understand natural phenomena but also to use this knowledge to make our lives more comfortable. Science and technology have enabled us to develop more economical and convenient methods to recover useful materials from nature and to put them to various uses. Chemistry has enabled us to synthesize new materials which have desired properties‚ thus‚ making them even better than natural
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equilibrium moved to the right (product) side. This is why temperature has to be on the reactants side (endothermic) in order for this shift to be possible. 5) If you add NaCl into the hydrated Cobalt (II) ion equilibrium‚ the concentration of the chloride ions would increase and some sodium ions would be formed. Because of this‚ the concentration of reactants increases which causes the equilibrium system to move to the right (products) side. Therefore‚ the solution turns purple. 6) Cr2O72- + 2OH-
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record the color of the flame. Test it again by observing the flame through two pieces of cobalt blue glass held together. Record the flame color with the cobalt blue glass on a separate line. You will observe the solution of sodium chloride mixed with potassium chloride without the cobalt blue glass and then again with the cobalt blue glass. Record the color of the flame seen not two separate lines.
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certain colors which will help us to figure out which element it is. Materials: Safety goggles Matches Weighing dishes‚ 6 Watch Glasses‚ 6 Wooden Splints‚ 6 Water‚ 250 mL Alcohol‚ 5 mL Calcium Chloride Copper Chloride Lithium Chloride Potassium Chloride Sodium Chloride Strontium Chloride Procedure: 1. Put on safety goggles 2. Wear gloves when handling chemicals 3. Obtain a 250 – mL beaker half-full with water. Obtain 6 wooden splints 4. Obtain six weighing dishes labeled
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*10-ml graduated cylinder *Vernier computer interface *ice *LoggerPro *salt *Vernier Temperature Probe *stirring rod *ring stand *100 ml of 1M calcium chloride *utility clamp *100 ml of 1M magnesium chloride *one test tube *100 ml of 1M sodium chloride *600-ml beaker *100 ml of 1M potassium chloride *water *100 ml
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