Convert %T to absorbance using the following table (Beer\'s Law) Concentration o

Question

Convert %T to absorbance using the following table (Beer's Law)

Concentration of Various Samples

Sample Identification

Code

Concentration of M

(mol/L)

%T

A = 2 - log(%T)

Q5000

4.00 x 10-4

17.9

Q5001

3.20 x 10-4

25.0

Q5002

2.40 x 10-4

35.7

Q5003

1.60 x 10-4

50.2

Q5004

8.000 x 10-5

70.8

Concentration of Various Samples

Sample Identification

Code

Concentration of M

(mol/L)

%T

A = 2 - log(%T)

Q5000

4.00 x 10-4

17.9

Q5001

3.20 x 10-4

25.0

Q5002

2.40 x 10-4

35.7

Q5003

1.60 x 10-4

50.2

Q5004

8.000 x 10-5

70.8

Explanation / Answer

Identification Code %T A Q5000 17.9 2 - log(17.9) = 2 - 1.25 = 0.75 Q5001 25.0 2 - log(25.0) = 2 - 1.40 = 0.60 Q5002 35.7 2 - log(35.7) = 2 - 1.55 = 0.45 Q5003 50.2 2 - log(50.2) = 2 - 1.70 = 0.30 Q5004 70.8 2 - log(70.8) = 2 - 1.85 = 0.15

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