significant portion of the lipids would likely solidify at low temperatures used during the washing process‚ and then the lipid would remove easily (Yarnpakdee et al.‚ 2012). 11.2 Washing with 1% (w/v) sodium chloride solution Sodium chloride has ability to reduce fishy odor due to sodium chloride in aqueous phase increase high polarity of water which showed leaching effect through interact with hydrophilic volatile base nitrogen as trimethylamine (TMA)‚ dimethylamine (DMA)‚ total volatile base-nitrogen
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methylene chloride 2.) Cap the tube securely and shake it vigorously‚ venting frequently 3.) Allow the layers to separate 4.) If the layers do not separate well‚ the mixture may be spun in a centrifuge. Or stir with a spatula or add about 1 mL of a saturated sodium chloride solution 5.) Using a Pasteur pipette‚ transfer the lower methylene chloride layer to a clean‚ dry‚ 5-mL conical vial. 6.) Repeat this extraction procedure two more times with fresh 1.0-mL portions of methylene chloride and place
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Experiment: Date Report Submitted: September 30‚ 2014 Instructor: Josh GeisingerClass: Chemistry Purpose: The purpose of this experiment was to use the Law of Conservation of Mass and the Law of Definite Proportions to determine the quantity of zinc chloride that is produced in a chemical change from a given amount of zinc. Background: We used two important laws of chemistry in this lab. Firstly‚ the Law of Conservation of Mass states that matter is neither created nor destroyed during a chemical
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constituent in the original sample can be calculated. Precipitation is effected by inorganic or organic precipitating agents. Two common inorganic precipitating agents are silver nitrate‚ which is used to precipitate halide ions such as chloride‚ and barium chloride‚ which is used to precipitate sulfate ion. In all of these precipitation reactions‚ the product is a salt because it is formed by reactions between cations and anions.Thus the bonding is ionic or electrovalent. The three major requirements
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Flame Test Lab Morgan Chemistry CP 5/30/14 Abstract- In the flame test lab‚ the flame test was performed to excite the electrons in the samples and observe the color of the flame. The flame emits a color because each element has an exactly defined emission spectrum‚ which one can use to identify them. For example‚ NaCl was highlighter yellow‚ Sr(NO3)2 was sun orange‚ CuCl2 was turquoise‚ LiCl was neon red‚ KCl was solar flare yellow‚ and BaCl2 was Voldemort green. Introduction- In Bohr’s
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maintain voltages across their cell membranes and to carry electrical impulses such as nerve impulses and muscle contractions across themselves and to other cells. The major electrolytes that are in our body are as follows: sodium (Na+)‚ potassium (K+)‚ chloride (Cl-)‚ calcium (Ca2+)‚ magnesium (Mg2+)‚ bicarbonate (HCO3-)‚ phosphate (PO42-)‚ sulfate (SO42-). Sodium is an abundant metallic element which is an important mineral for all living organisms. It is also widely used industrially to make an assortment
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the color that the fireworks have because the colors change in the electromagnetic spectrum. As observed by my data all of the salt’s wavelengths correspond to the specific color that they burned on the electromagnetic spectrum. For example‚ Copper Chloride burned green when placed on the fire. This corresponds to the color green on the electromagnetic spectrum‚ which is around 525nm wavelength. However‚ this energy was not produced by the chemical reaction; it was only transformed by
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dialysate. Hypothesis: The sodium chloride will definitely pass through the semi permeable membrane because it is a very small molecule‚ compared to the large pores in dialysis tubing. Glucose and starch have bigger molecules‚ and therefore are less likely to pass through the dialysis tubing Materials: • 250- mL beaker • 12 test tubes (varied sizes) • 200mm dialysis tubing • String • 1.0% starch solution • 10% glucose solution • 5% sodium chloride solution • Benedict’s reagent • Iodine
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Q. 1. What do you observe when ammonia gas is bubbled through red litmus solution? Q. 2. Write an equation for solutions of ammonium chloride and sodium hydroxide are heated. Q. 3.(i) What is the purpose of Haber’s Process ? (ii) Name the gaseous inputs of the Haber’s Process and state the ratio by volume in which the gases are mixed. (iii) What is done to increase the rate of reaction in the Haber Process ? (iv) Give two different ways by which the product can be separated from the reactants
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Introduction: Hydraulic fracturing is the process in which a mixture of chemicals and water are used in combination to stimulate wells and expose minerals that previously would have been much too expensive to access using tradition methods. With the process comes some detrimental environmental consequences‚ like water contamination‚ due to the chemicals used in the liquid mixture. According to an Earthworks article‚ only 0.5 to 2.0% of the “frack fluid” volume content is made up of chemicals‚ which
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