KineticTheoryLab

KineticTheoryLab - Kinetic Theory Inquiry Lab Purpose: To...

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Kinetic Theory Inquiry Lab Purpose: To observe color changes in the chemical reactions of gases and to interpret these changes in terms of kinetic theory. Materials: Petri dish with cover, Pencil, Paper, Cotton swab, beakers of ice and warm water Bromthymol blue indicator (BTB), universal indicator KI, HCl, NaOH, NH 4 Cl, NaNO 2 , NaHSO 3 Procedure: Trace petri dish on paper and draw 4 straight lines across paper dividing dish into 8 sections. Use a penny to make a circle in the center (This is your reaction spot) Place petri dish over circle Place 4 small BTB drops along each line evenly spaced away from center dot. Mix 1 drop each of HCl and NaHSO 3 in center spot and immediately cover petri dish Record observations Use a cotton swab to soak up center mixture and add 1 drop each of NH 4 Cl and NaOH. Record observations Repeat procedure-using KI instead of BTB as indicator and NaNO 2 and HCl in center. Record observations
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This note was uploaded on 11/09/2011 for the course CHEM 100 taught by Professor Sdfsdf during the Winter '08 term at BYU.

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KineticTheoryLab - Kinetic Theory Inquiry Lab Purpose: To...

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