Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition
Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition
9th Edition
ISBN: 9781292151229
Author: Wade, LeRoy G.
Publisher: PEARSON
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Chapter 15, Problem 15.28SP

A solution was prepared using 0.0010 g of an unknown steroid (of molecular weight around 255) in 100 mL of ethanol. Some of this solution was placed in a 1-cm cell, and the UV spectrum was measured. This solution was found to have λmax=235nm, with A=0.74.

  1. a. Compute the value of the molar absorptivity at 235 nm.
  2. b. Which of the following compounds might give this spectrum?

Chapter 15, Problem 15.28SP, A solution was prepared using 0.0010 g of an unknown steroid (of molecular weight around 255) in 100

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2. 200 LOD For an unknown compound with a molecular ion of 101 m/z: a. Use the molecular ion to propose at least two molecular formulas. (show your work) b. What is the DU for each of your possible formulas? (show your work) C. Solve the structure and assign each of the following spectra. 8 6 4 2 (ppm) 150 100 50 ō (ppm) 4000 3000 2000 1500 1000 500 HAVENUMBERI-11

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Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition

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