Table 1 Beers Law data for iodine Solution mL Concentration

Table 1. Beer\'s Law data for iodine Solution (mL) Concentration (M) Absorbance, A 2 331 666 5 Calculation of molar absorptivity The molar absorptivity, e Graph 1 is attached as next page.

as per Beers law, Absorbance (A)= e(molar absorptivity)*b( path length)*C( concentration)

so a plot of Absorbance vs concentration gives straight line whose slope is given by eb. Assuming a path length of 1cm for b, slope is molar absorptivity.

from the plot for b= 1, slope = 2411/M.cm, if path length = 1.5 cm, slope = 2411/1.5 /M.cm = 1607.33/M.cm

the plot of C vs A is generated and the plot is shown below.

$Table 1. Beer\'s Law data for iodine Solution (mL) Concentration (M) Absorbance, A 2 331 666 5 Calculation of molar absorptivity The molar absorptivity, e Grap$

Table 1 Beers Law data for iodine Solution mL Concentration

Solution

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