Mole Ratio

Introduction During the course of the experiment the enthalpy neuter of a serial of responses were measured. The main closing was to determine the stoichiometry of an oxidation-reduction chemical reaction in which the reactants are known (NaOCl) & (Na2S2O3 in NaOH). Procedure scratch line step was to dress out up the temperature probe and started the gent pro program. Measured 25.0mL of the 0.50 M NaOCl resoluteness in a stabilized Styrofoam cup and immersed the speck of the temperature probe in the cup of this dissolving agent allowing the program to touch graph a a couple of(prenominal) initial Temp. readings for data collection. wherefore 25mL of the Na2S2O3 solution was added to the previous solution while stirring the reaction mixtures with the temperature probe. Data collection should anticipate afterwards 3 proceedings or may be stop if temp reaches a stand still earlier the 3 minute judgment of conviction frame. Maximum temperature change is t o be recorded as data. steps are retell various times at a book of accounting system of 50mL to get three measurements on either locating of the residual that produces the greatest temp change. Discussion DATA TABLE sign Temp (C) hoi polloi OCL- (mL)Volume S2O3^2- (mL)Temperature Change (C)Final Temp (C) 23.225mL25mL12.2 C35.4 C 23.720 mL30mL10.3 C34 C 23.730 mL20mL16.1 C39.8 C 23.

540mL10mL22 C45.5 C 23.745 mL5mL12.4 C36.1 C Results Based on the data it was demonstrate that the thiosulfate solution was the limiting reactant, because temperature decreased. Mixing opposite volumes of t he two reactants resulted in different tempe! rature changes. The temperature change was directly relative to the quality of reactants consumed, because the goal of the experiment was to make the volume of the solution and the total calculate of moles of the reactants constant. Therefore leaving the optimum ratio; that was determined after the results of the experiment to be the ratio of the volume of reactants that consumed the greatest quantity of reactants, formed the greatest amount of...If you compliments to get a full essay, order it on our website: BestEssayCheap.com

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