A student collects the following data for the absorbance of a complex measured i

Question

A student collects the following data for the absorbance of a complex measured in 1.00 cm spectrophotometric cells. The molar absorptivity of the complex under investigation is 0.750 L/mol.cm. Calculate the concentration of the solution at each time of the reaction. A student collects the following concentration data for substance A as part of a kinetic experiment. Compete the data table and then sketch 3 graphs using the data from the table. Connect consecutive points in the graphs using a ruler. For example:

Explanation / Answer

Answer)

A= lc

= Molar absorptivity

l = Length of cell

C= Concentration

A= Absorbance

Time in min

Absorbance

Concentation (M)

0

1.5

2

10

1.313

1.750666667

20

1.125

1.5

30

0.938

1.250666667

40

0.75

1

Molar absoptivity= 0.750 L/mol cm

Time in min

Absorbance

Concentation (M)

0

1.5

2

10

1.313

1.750666667

20

1.125

1.5

30

0.938

1.250666667

40

0.75

1

Molar absoptivity= 0.750 L/mol cm

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