Stoichiometry of Sodium Hypochlorite and Potassium Iodide Reaction | CHEM 1045, Lab Reports of Chemistry

Download Stoichiometry of Sodium Hypochlorite and Potassium Iodide Reaction | CHEM 1045 and more Lab Reports Chemistry in PDF only on Docsity! Stoichiometry Objective To determine the stoichiometry of the reaction in an aqueous solution between sodium hypchlorite (NaClO) and potassium iodide (KI). Experimental Data Volume of NaClO (mL) Volume of KI (mL) Initial Temp of NaClO (C) Initial Temp of KI (C) Final Temp (C) 45.0 5.0 21.93 22.03 25.11 40.0 10.0 21.99 22.33 27.89 35.0 15.0 22.04 22.14 28.49 30.0 20.0 22.05 22.09 27.34 25.0 25.0 22.10 22.22 26.33 20.0 30.0 22.10 22.15 25.17 15.0 35.0 22.74 22.48 24.94 10.0 40.0 22.32 22.20 23.34 5.0 45.0 22.20 22.12 22.69 Volume of NaClO: 131 mL Volume of KI: 225 mL Sample Calculations 1. mole fraction of NaClO = volume of NaClO volume of NaClO + volume of KI mole fraction of NaClO = 45.0 mL 45.0 mL + 5.0 mL = 0.9 2. T(initial)= (T1*V1 +T2 *V2) V1 + V2 T(initial) = ((21.93  C*45.0mL) + (22.03  C*5.0mL)) 45.0mL + 5.0mL T(initial) = 21.94 C 3. mole fraction NaClO = 0.26 = 0.35 mole fraction KI 0.74 Results and Conclusions Volume of NaClO (mL) Volume of KI (mL) Mole fraction of NaClO Initial Temp of NaClO Initial Temp of KI (C) Final Temp (C) Change in Temp (C)