Molarity Lab Report

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Introduction A solution is a uniform mixture of two or more components. The components can be identified as solutes or a solvent. The solutes are the minor components of the solution, and they are what get dissolved. The solvent is the major component of the solution, and it does the dissolving. Solutions are measured in terms of solubility. Solubility refers to the maximum amount of solute that will dissolve in the solvent. When the maximum amount of solute has dissolved, the solution becomes saturated. The mathematical terminology to determine solubility is called molarity. Molarity is the moles of solute divided by the liters of solution, which is essentially the concentration. In a laboratory, the solution concentration can…show more content…
The magnesium sulfate, sodium sulfate, and calcium chloride have similar conductivities ranging from 210 to 225 µ ohmo. What property do the salts have in common? The sodium chloride and magnesium sulfate have the same total number of ions, and the sodium sulfate and calcium chloride have the same number of ions. The magnesium sulfate, sodium sulfate, and calcium chloride have the same total charge of ions in their solutions. Which solution has the lowest conductivity? Why? Sodium chloride has the lowest conductivity reading at 120.3 µ ohmo. It has the smallest conductivity because its total ionic charge is less than the other solutions. Conclusion Experiment A was performed to determine the concentration using the factors of Beer’s Law. The absorbances from the different diluted solutions were graphed to determine the existence coefficient factor. The graph did not produce a straight line but slightly curved. The slope of the trendline on the graph equals the existence coefficient factor, and it was 35.3. Experiment B was performed to determine the unknown amount of water in the iron III chloride hydrate. The hydration number was obtained through stoichiometry and the value was…show more content…
The purpose of the experiment was to determine whether the conductivity depended on the total concentration of the solution or the total charge of the ions in the solution. Sodium chloride and magnesium sulfate have the same total number of ions while sodium sulfate and calcium chloride have the same number of ions. Magnesium sulfate, sodium sulfate, and calcium chloride have the same total charge of the ions. Therefore, magnesium sulfate solution determined whether or not the conductivity depended on the total number of ions or the total charge of the ions. The results of the magnesium sulfate solution show that the conductivity depends on the total charge of the ions in the solution. The conductivity of the magnesium sulfate solution was approximately 210, which was in close proximity to sodium sulfate and calcium chloride. The higher the total charge was for the solution, the more electrolytes there were to produce an electrical
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