the trivalent state. 8OH-(aq) + 4Mn2+(aq) + 2H2O(l) －－＞ 4Mn(OH)3(s) The analysis is completed by titrating the iodine produced from potassium iodide by manganese(III) hydroxide. 2Mn(OH)3(s) + 2I-(aq) + 6 H+(aq) －－＞ 2Mn2+(aq) + I2(aq) + 6H2O(l) Sodium thiosulphate is used as the titrant. Success of the method is critically dependent upon the manner in which the sample is manipulated. At all stages‚ every method must be made to assure that oxygen is neither introduced to nor lost from the
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unknown Materials • Lab Quest • Lab Quest App • Temp. Probe • Two 10mL graduated cylinders • Two 25mL graduated cylinders • Two 50 mL graduated cylinders • Three 250mL beakers • 0.50 M sodium hypochlorite‚ NaOCI • 0.50 M sodium thiosulfate‚ Na S O • 0.2 M sodium hydroxide‚ NaOH • Styrofoam Cups Procedure Submitted as the carbon-less copy of the pre-lab outline (see attached) Results and Discussion During this experiment we first‚ prepared the solutions of the reactants
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outdoor pit over a fire of pimento wood‚ which gives the meat its distinctive flavor. Unfortunately‚ jerk contains high levels of salt and sodium. If a patient has health issues that include congestive heart failure or hypertension‚ they may need to be on a low sodium diet. A nurse can help with cultural repatterning by teaching the client how to reduce the salt or sodium in their diet‚ but at the same time maintaining their cultural food preferences. A nurse can provide recipes for jerk with less salt
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Reaction Rate Coursework Aim To see how the concentration of a reactant affects the rate of reaction‚ in this case sodium thiosulphate and acid. Scientific Background For a reaction to occur‚ the particles of the reactants must be colliding with each other with enough energy‚ the amount of energy needed for the reaction is called activation energy. Activation energy is altered by temperature‚ concentration‚ surface area of and the pressure on the reactants. Stirring the reactants also increases
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elements‚ while solid mixtures such as Fe filings and S powder were classified as heterogenous because after combining it their properties were still distinguishable from each other but when heated it is already considered as a solution. Water and Sodium Chloride were compounds given they are two or more elements‚ while mixing them we were able to create a solution. The Nacl that dissolves into H20 are techinically dissociated into ions but after heating it the table salt comes back without H20.
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likely cause of death. 4. If you suspected that a patient’s symptoms were caused by the condition suffered by Jennifer‚ Cassandra‚ and James‚ what kinds of test would you run to confirm your suspicions? - Tests should be run to see how much sodium is in the body‚ available for use. Electrolyte tests should give an idea of the concentration of salts. 5. Once you knew the cause of their symptoms‚ what kind of emergency treatment might you try for a patient like Cassandra or James if you were
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CO32- + 2H+ + 2Cl- → 2Na+ + 2Cl- + H2O + CO2 CO32- + 2H+ → H2O(l) + CO2(g) With this reaction the carbonate and the diatomic hydrogen combined together to make the bubbling effect that we had noted. This leaves us with the water molecule with the sodium chloride dissolved in it with the carbon dioxide gas bubbles. 4. NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l) Na+ + OH- + H+ + Cl- → Na+ + Cl- + H2O(l) OH- + H+ → H2O This reaction with a strong acid‚ as noted‚ released heat‚ which we call an exothermic
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present in commercial bleach. Introduction Many commercial products‚ such as bleaches and hair coloring agents‚ contain oxidizing agents. The most common oxidizing agent in bleaches is sodium hypochlorite‚ NaClO (sometimes written NaOCl). Commercial bleaches are made by bubbling chlorine gas into a sodium hydroxide solution. Some of the chlorine is oxidized to the hypochlorite ion‚ ClO-‚ and some is reduced to the chloride ion‚ Cl-. The solution remains strongly basic. The chemical equation
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Results and discussion: I. a. How would you compare that relative reactivity of Na and k -Sodium and potassium react somewhat similar when reacting with water however they are slightly different. Sodium moves because of the hydrogen coming off of it and has a low melting point while potassium’s reaction is faster and enough heat is produced to set light to the hydrogen coming off of it. Each leaves a pink color hue in the water. Discuss the similarities and differences in the behavior of the metals
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acidosis? What is this called? What effects does it have? 3. Burn patients have damaged skin cells that are unable to prevent water loss. The kidneys help retain water by using the sodium-potassium pump. It pumps more sodium into the cells so that water can follow the movement of sodium and can be reabsorbed. Sodium ions are exchanged with potassium being pumped out of the cells into the renal tubules‚ where it’s secreted in urine. Therefore‚ potassium levels in urine are high. 4. Acidosis can
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