AccountingQueen

(3)

$16/per page/Negotiable

About AccountingQueen

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Accounting,Algebra See all
Accounting,Algebra,Applied Sciences,Architecture and Design,Art & Design,Biology,Business & Finance,Calculus,Chemistry,Communications,Computer Science,Economics,Engineering,English,Environmental science,Essay writing,Film,Foreign Languages,Geography,Geology,Geometry,Health & Medical,History,HR Management,Information Systems,Law,Literature,Management,Marketing,Math,Numerical analysis,Philosophy,Physics,Precalculus,Political Science,Psychology,Programming,Science,Social Science,Statistics Hide all
Teaching Since: Jul 2017
Last Sign in: 268 Weeks Ago, 5 Days Ago
Questions Answered: 5502
Tutorials Posted: 5501

Education

  • MBA.Graduate Psychology,PHD in HRM
    Strayer,Phoniex,
    Feb-1999 - Mar-2006

  • MBA.Graduate Psychology,PHD in HRM
    Strayer,Phoniex,University of California
    Feb-1999 - Mar-2006

Experience

  • PR Manager
    LSGH LLC
    Apr-2003 - Apr-2007

Category > Chemistry Posted 05 Sep 2017 My Price 10.00

Chemical Kinetics

Shown are the quantities of solutions and water that constitute the six runs or separate experiments

Run #

0.090 M KI

1.0 M H2O2

H20

Total Volume

1

10

5

15

30

2

10

5

15

30

3

10

10

10

30

4

20

5

5

30

5

20

10

0

30

6

10

5

15

30

 

 

 

I need help with the calculation of the best rate calculation and the questions in the post-lab. I have attached the data from the runs that were performed

 

 

Please show calculations for the best value for the observed rate of O2 production in mL O2/min for the following runs.

 

 

 

 

These are the data from the runs

 

Run 1

Water level (mL)

Time (sec)

47.6

30

45.5

60

43.4

90

41.4

120

39.3

150

37.6

180

35.5

210

33.8

240

31.7

270

30.3

300

 

 

Run 2

Water level (mL)

Time (sec)

47.9

30

45.9

60

43.7

90

41.1

120

38.0

150

35.7

180

33.6

210

31.4

240

29.1

270

27.0

300

 

 

Run 3

Time (sec)

Water level (mL)

30

46.5

60

42.6

90

37.7

120

32.6

150

27.9

180

23.5

210

20.3

240

16.5

270

12.1

300

8.2

 

 

Run 4

Time (sec)

Water level (mL)

30

44

60

37.5

90

32

120

27.3

150

22.1

180

18.5

210

15.2

240

13

270

10

300

7.2

 

Run 5

Time (sec)

Water level (mL)

30

39.5

60

30.5

90

23.6

120

16.6

150

9.5

180

4.2

210

0

240

0

270

0

300

0

 

Run 6

Time (sec)

Water level (mL)

30

47.2

60

44.7

90

42.6

120

40.7

150

37.5

180

34.2

210

30.8

240

26.8

270

24.1

300

20.5

 

 

 

 

 

 

 

 

 

 

Run #

[H2O2] initial

[KI] initial

Temp (in C)

Best rate

1

0.167

0.030

21.4

 

2

 0.167

0.030

20.7

 

3

0.333

0.030

22.9

 

4

0.167

0.06

22.9

 

5

0.333

0.06

22.9

 

6

0.167

0.030

42.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Post-lab Questions

1)    Describe how you arrive at the best rate for each run. Consider these questions in your answer: are the rates the same all the same in a given run? Should they be? Are the rates consistent within a run and between runs?

 

 

 

 

2)    Using the differences in initial concentrations and rate that you observed in runs 2 through 5, write the rate-law expression for the decomposition of H2O2. Explain how you arrived at your rate-law expression.

 

 

 

3)    If your rate is expressed as a change in molar concentration per second (M/s), what are the units for the rate constant (k). Hint the units for k can be anything; think about what units need to be cancelled out in order to achieve the proper rate unit M/s

 

 

 

4) How does temperature affect the reaction rate? Explain using your data and propose a hypothesis to explain the effect. 

Answers

AccountingQueen
(3)
Status NEW Posted 05 Sep 2017 08:09 AM My Price 10.00

Hel-----------lo -----------Sir-----------/Ma-----------dam----------- T-----------han-----------k y-----------ou -----------for----------- us-----------ing----------- ou-----------r w-----------ebs-----------ite----------- an-----------d a-----------cqu-----------isi-----------tio-----------n o-----------f m-----------y p-----------ost-----------ed -----------sol-----------uti-----------on.----------- Pl-----------eas-----------e p-----------ing----------- me----------- on----------- ch-----------at -----------I a-----------m o-----------nli-----------ne -----------or -----------inb-----------ox -----------me -----------a m-----------ess-----------age----------- I -----------wil-----------l

Not Rated(0)
Relevent Questions