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17 Nov 2019
A compound with molecular mass 301.27 g/mol was dissolved in a 5-mL volumetric flask. A 1.00-mL aliquot was withdrawn, placed in a 10-mL volumetric flask, and diluted to the mark. The absorbance at 340 nm was 0.445 in a 1.000-cm cuvet. The molar absorptivity at 340 nm is epsilon_340 = 6070 M^-1-cm^-1. Calculate the concentration of compound in the cuvet. M What was the concentration of compound in the 5-mL flask? M How many milligrams of compound were used to make the 5-mL solution? mg
A compound with molecular mass 301.27 g/mol was dissolved in a 5-mL volumetric flask. A 1.00-mL aliquot was withdrawn, placed in a 10-mL volumetric flask, and diluted to the mark. The absorbance at 340 nm was 0.445 in a 1.000-cm cuvet. The molar absorptivity at 340 nm is epsilon_340 = 6070 M^-1-cm^-1. Calculate the concentration of compound in the cuvet. M What was the concentration of compound in the 5-mL flask? M How many milligrams of compound were used to make the 5-mL solution? mg
Patrina SchowalterLv2
11 Oct 2019