dark and white backgrounds. If there is no reaction for that combination of solutions write NR (no reaction). Before beginning‚ set up a data table similar to the Data Table: Solubility Rules Table in the Lab Report Assistant section. CAUTION! Sodium hydroxide is caustic and can burn skin and clothes if it touches them. Rinse any spills well with copious amounts of water. Also‚ most of these chemicals are toxic by ingestion. So remember‚ no food or drinks in the lab! 1. All reactions will be
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osmosis C) active transport D) facilitated diffusion 7) The sodium-potassium pump can transport _______. 7) _______ A) only if sodium and potassium are available B) sodium even if potassium is not available C) potassium even if sodium is not available D) sodium even if potassium is not available and potassium even if sodium is not available
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vanillin molecule with dilute sodium hydroxide to make it into a sodium salt so that it is in its aqueous phase (Southam‚ 2013). This is done as in the first step the pure vanillin is attracted to the dichloromethane as they are both organic structures and have similar intermolecular forces (dispersion). The second step involves mixing it with sodium hydroxide and this is done as the phenol group reacts with the sodium hydroxide to create a sodium salt and water‚ the sodium salt then wants to stay in
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practice guideline on diagnosis and treatment of hyponatraemia. European Journal of Endocrinology 2014; 170: G1–G47. 6. Staikov I‚ Simeonova A‚ Mihnev N‚ Simeonov G‚ Davidov K and Kirova G. Central Pontine Myelinolysis in Patient with Normal Serum Sodium Levels‚ System Alcohol Use and Malnutrition- A Case Report. Austin J Clin Neurol 2015; 2(9): 1074. 7. Verbalis JG‚ Goldsmith SR‚ Greenberg A‚ Schrier RW and Sterns RH. Hyponatremia Treatment Guidelines 2007: Expert Panel Recommendations. Am J Med
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Water Balance Adipose tissue is one of the most hydrated of all tissues in the human body. False The most abundant cation in intracellular fluid is sodium. False Electrolytes determine most of the chemical and physical reactions of the body. True Solutes‚ regardless of size‚ are able to move freely between compartments because water carries them along the osmotic gradients.False The thirst center in the brain is located in the hypothalamus.True Dehydration can be caused by endocrine disturbances
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Zinc metal and Hydrochloric acid for a single replacement reaction. Nitric acid and sodium hydroxide‚ nitric acid and sodium carbonate‚ and
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makes the solution acidic. Salts formed from a weak acid and a strong base hydrolyze to form a solution that is slightly basic. In this kind of hydrolysis‚ it is the anion from the weak acid that actually reacts with the water. For example‚ when sodium acetate‚ NaC2H3O2‚ hydrolyzes‚ water molecules react with the acetate ion: C2H3O2- + H2O ---------> HC2H3O2 + OH- The formation of the OH- ion from this reaction makes the solution basic. Salts formed from a week
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hydrochloric acid it increased 23.7oc and there was steam coming out. 2) Hydrochloric Acid and Sodium Hydroxide: the initial temp was 20oc then when I added Sodium hydroxide it went up to 29℃. But there was no visual reaction. 3) Anhydrous Copper (II) Sulfate and Water: the initial temperature was 21℃ but when we added the water it was 30℃ so it went 9℃ high the visual change was that the water was ocean blue. 4) Sodium Theosulfate And Water: initial temperature is 23℃ when we added the water it was 14℃
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Ionic compounds are formed when a metal and a non-metal join together. When sodium metal is dropped into a gas jar of chlorine gas the elements react violently to form a new compound called sodium chloride joined by ionic bonds. To understand how this process works‚ we must grasp an understanding of what an ion is and what an ionic bond is. An ion is an atom that has an electric charge and is created when an atom (or a group) gain or loses electrons. (It has an electric charge due to the imbalance
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are purified by partitioning the solid in 2 immiscible solvents‚ diethyl ether and sodium bicarbonate or sodium hydroxide. II. Significance a. The significance of the Extraction lab is to purify Acetanilide benzoic acid‚ 2-naphthol‚ and naphthalene by determining the partition coefficient. This value is determined by dividing the solubility of the given solute in the extraction solvent (Sodium bicarbonate or Sodium hydroxide)) by the solubility in the original solvent (Diethyl ether). III. Theory
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