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September 21, 2014

Homework Help: General Chemistry.

Posted by Shardae. on Wednesday, November 7, 2012 at 3:21am.

The absorbance of a chlorophyll a standard solution in ethanol (density = 0.785 g/mL) is measured in
a 1.3 cm cuvette or path length. The absorbance is 0.765 and the molar absorptivity coefficient is 86,300 M1cm1.
The molecular weight for chlorophyll a is 893.49 g/mol.

What is the concentration of the solution in ppm?

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