Exp 12 - Factors Affecting Rxn Rate Lab

Exp 12 - Factors Affecting Rxn Rate Lab - Chemistry 12...

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Chemistry 12 Name:________________________, Blk:____ Experiment 18A: Factors Affecting Reaction Rate Purpose: _ To observe and record the effects of concentration, surface area, and temperature on reaction rates Materials: As per pg. 192 of Heath Laboratory Experiments . Procedure: -As per pgs. 193 to 196 of Heath Laboratory Experiments. - Safety is important, as the higher concentration acids can be dangerous. - Collect class data for parts 1 and 3 to use in your graphs. Data Mass of 11 cm strip of Mg: 0.1 Average mass of 1 cm Mg strip: 0.1 / 11 = 9.09x10 -3 (use for the rest of the lab) PART 1 : Effect of Concentration on Reaction Rate Concentration of Acid (M) Reaction time (seconds) Reaction Rate (g of Mg/second) 0.5 M 322.4 2.820 x 10 -5 1.0 M 102.6 8.861 x 10 -5 3.0 M 25.6 3.551 x 10 -4 6.0 M 12.7 7.158 x 10 -4 PART 2 : Effect of Surface Area on Reaction Rate Shape of Mg strip Reaction time (seconds) Reaction Rate (g of Mg/second) Test Tube A- slivers 116.3 7.817 x 10 -5 Test Tube B- rolled 85.9 1.058 x 10 -4 Test Tube C - flat 102.8 8.843 x 10 -5 PART 3 : Effect of Temperature on Reaction Rate Temperature ( ° C) Reaction time (seconds) Reaction Rate (g of Mg/second)
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This note was uploaded on 01/23/2012 for the course CHEM 11 taught by Professor Staff during the Fall '08 term at Concordia AB.

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Exp 12 - Factors Affecting Rxn Rate Lab - Chemistry 12...

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