chemistry

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chemistrylabwork.docx

Table 1: 10 mL Undiluted (1.0-2.0%) IKI and 5 mL 3% H2O2

mL water displaced

Time (seconds)

2

18.9

4

45.7 

6

65.9 

8

98.4

10

123.6 

12

138.4

14

151.2 

16

197.4 

18

242.3 

20

278.1 

22

327.6 

Slope:

29.345

Inverse Slope:

0.9743 

Table 2: 10 mL 0.5-1.0% IKI and 5 mL 3% H2O2

mL water displaced

Time (seconds)

2

88.6 

4

129.5

6

148.3

8

199.3 

10

236.1

12

268.5

14

331.6

16

393.7

18

448.9

20

  499.5

22

529.9 

Slope:

  46.115

Inverse Slope:

0.989 

Table 3: 10 mL Undiluted (1.0-2.0%) IKI and 5 mL 2.25% H2O2

mL water displaced

Time (seconds)

2

24.1 

4

49.5 

6

78.2 

8

133.3

10

186.7 

12

203.5 

14

214.9 

16

262.7 

18

321.6 

20

363.5 

22

397.2 

Slope:

37.625 

Inverse Slope:

0.9886 

Post-Lab Questions

1. Determine the order of the IKI in this reaction?

1. Determine the order of the H2O2 in this reaction.

1. What is the overall rate law?

Table 1

Time in seconds 2 mL 4 mL 6 mL 8 mL 10 mL 12 mL 14 mL 16 mL 18 mL 20 mL 22 mL 18.899999999999999 45.7 65.900000000000006 98.4 123.6 138.4 151.19999999999999 197.4 242.3 278.10000000000002 327.60000000000002

Table 2

Time in seconds 2 mL 4 mL 6 mL 8 mL 10 mL 12 mL 14 mL 16 mL 18 mL 20 mL 22 mL 88.6 129.5 148.30000000000001 199.3 236.1 268.5 331.6 393.7 448.9 499.5 529.9

Table 3

Time in seconds 2 mL 4 mL 6 mL 8 mL 10 mL 12 mL 14 mL 16 mL 18 mL 20 mL 22 mL 24.1 49.5 78.2 133.30000000000001 186.7 203.5 214.9 262.7 321.60000000000002 363.5 397.2