Question

Using the tetracosane internal standard as a reference, calculate the moles of
each Cr complex in each sample.

An internal standard is a known concentration of a certain substance that is present in every sample being analyzed in the experiment. These standards are usually used with the calibration curve of the data. The purpose of it is to behave in a similar fashion to that of the analyte, while also providing a signal that is different from that of the analyte.

Tetracosane - C 24 H 50 = 338.7g/mol
Experiment called for 0.0154g C 24 H 50 * 1mol C 24 H 50 /338.7g C 24 H 50 = 4.546*10 -
5 mol C 24 H 50
Cr(acac)3 - C 15 H 21 CrO 6 = 349.32g/mol
Experiment called for 0.0151g C 15 H 21 CrO 6 * 1mol C 15 H 21 CrO 6 /349.32g
C 15 H 21 CrO 6 = 4.323*10 -5 mol C 15 H 21 CrO 6

Is this correct?

Answer 1

Your are correct

And calculation is varified in image