Mole Ratio

Introduction During the course of the experiment the enthalpy switch of a serial of responses were measured. The main finis was to determine the stoichiometry of an oxidation-reduction chemical reaction in which the reactants are known (NaOCl) & (Na2S2O3 in NaOH). Procedure graduation exercise step was to dress out up the temperature probe and started the faller pro program. Measured 25.0mL of the 0.50 M NaOCl resoluteness in a stabilized Styrofoam loving cup and immersed the speck of the temperature probe in the cup of this settlement 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 stuff afterward 3 proceedings or may be stop if temp reaches a stand still in advance the 3 minute judgment of conviction frame. Maximum temperature change is to be recorded as data. steps are restate various times at a book of banknote of 50mL to get three measurements on either locating of the accord that produces the greatest temp change. Discussion DATA TABLE initial 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 plunge that the thiosulfate solution was the limiting reactant, because temperature decreased. Mixing opposite volumes of the two react ants resulted in different temperature chang! es. 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 numerate 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 make out 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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