Experiment 6 - Stoichiometry - General Chemistry Lab | CHEM 1045, Lab Reports of Chemistry

Download Experiment 6 - Stoichiometry - General Chemistry Lab | CHEM 1045 and more Lab Reports Chemistry in PDF only on Docsity! Date performed: 10/13/2008 Name: Ogechi Nwaneri Date submitted: 10/20/2008 Partner: Samantha Dow Instructor: Furong Sun Experiment 6 – Stoichiometry Objective: To determine the stoichiometry of the reaction between sodium hypochlorite (NaClO) and potassium iodide (KI) in aqueous solution. Experimental Data: Volume of NaClO (mL) Volume of KI (mL) Initial Temp of NaClO (°C) Initial Temp of KI (°C) Final Temp (°C) ΔT (°C) Mole FracT (°C) Mole Frac 45.0 5.00 20.40 20.40 24.51 4.11 0.9 40.0 10.0 20.40 20.40 27.75 7.35 0.8 35.0 15.0 20.40 20.40 26.96 6.56 0.7 30.0 20.0 20.40 20.40 25.89 5.49 0.6 25.0 25.0 20.40 20.40 25.08 4.68 0.5 20.0 30.0 20.40 20.40 24.25 3.85 0.4 15.0 35.0 20.40 20.40 23.46 3.06 0.3 10.0 40.0 20.40 20.40 22.52 2.11 0.2 5.00 45.0 20.40 20.40 21.67 1.27 0.1 Tinitial of NaClO: 21.80°C Tinitial of KI: 20.24°C Tinitial = (21.80°C)(45mL)+(20.24°C)(400mL) = 20.40°C 45mL+400mL Sample Calculation: Mole fraction NaClO = 45.0 mL NaClO___ = 0.9 45.0 mL NaClO + 5.00 mL KI