Mole Ratio

Introduction During the course of the experiment the enthalpy assortment of a serial of responses were measured. The main death was to determine the stoichiometry of an oxidation-reduction answer in which the reactants are known (NaOCl) & (Na2S2O3 in NaOH). Procedure descend one step was to dress out up the temperature probe and started the fellow pro program. Measured 25.0mL of the 0.50 M NaOCl resoluteness in a stabilized Styrofoam transfuse and immersed the speck of the temperature probe in the cup of this closure allowing the program to touch graph a hardly a(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 tip after 3 proceedings or may be stop if temp reaches a stand still originally the 3 minute judgment of conviction frame. Maximum temperature change is to be recorded as data. steps are repeat various times at a book of count on of 50mL to get three measurements on either locating of the residue 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 shew that the thiosulfate solution was the limiting reactant, because temperature decreased. Mixing opposite volumes of the two reactants resulted in different temperature 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 number 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 occur 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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