Chemistry, 05.05.2020 08:12 ayoismeisalex
A 15.0-mg sample of a compound with a formula mass of 384.63 was dissolved in a 5-mL volumetric flask. A 1.00-mL aliquot was withdrawn, placed in a 10-mL volumet- ric flask, and diluted to the mark. (a) Find the concentration of sample in the 5-mL flask. (b) Find the concentration in the 10-mL flask. (c) The 10-mL sample was placed in a 0.500-cm covet and gave an absorbance of 0.634 at 495 nm. Find the molar absorptivity at 495 nm.
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A 15.0-mg sample of a compound with a formula mass of 384.63 was dissolved in a 5-mL volumetric flas...
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