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Determining Stoichiometry of NaClO-KI Reaction: Mole Fraction and Change in Temperature - , Lab Reports of Chemistry

Virginia Polytechnic Institute and State University (Virginia Tech)Chemistry

Prof. Joseph Merola

An experiment to determine the stoichiometry of the reaction between sodium hypochlorite (naclo) and potassium iodide (ki) in aqueous solution. Experimental data, calculations of mole fraction and change in temperature, and conclusions about the reaction's efficiency.

Typology: Lab Reports

Pre 2010

Uploaded on 01/18/2009

sobe-1 🇺🇸

1 document

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Download Determining Stoichiometry of NaClO-KI Reaction: Mole Fraction and Change in Temperature - and more Lab Reports Chemistry in PDF only on Docsity! 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. NaClO (°C) Initial Temp. KI (°C) Final Temp. (°C) 45.0 5.00 21.24 20.12 23.96 40.0 10.0 21.24 20.12 27.75 35.0 15.0 21.24 20.12 28.00 30.0 20.0 21.24 20.12 26.87 25.0 25.0 21.24 20.12 25.85 20.0 30.0 21.24 20.12 24.88 15.0 35.0 21.24 20.12 23.99 10.0 40.0 21.24 20.12 22.81 5.00 45.0 21.24 20.12 21.82 Sample Calculations: Mole fraction of NaClO = Volume NaClO/(Volume NaClO + Volume K) M= 45.0/ (45.0+ 5.00) = 0.90 M ΔT°C= Tfinal- TinitialT°C= Tfinal- Tinitial = 20.68- 23.96 = 3.28 °C Results and Conclusions:

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