The molar extinction coefficient of B (MW = 180) is 4 x 103 L mol-1 cm-1. One-liter solution of C which contains 0.1358 g pharmaceutical preparation of B, shows an absorbance of 0.411 in a 1 cm quartz cell. What is the percentage (w/w) of B in the pharmaceutical preparation?

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Organic Chemistry Practice Test: Organic Reaction Concepts — practice the complete quiz, review flashcards, or try a random question.

Organic Reaction Concepts include: Displacement and nucleophilic substitution reactions, organic compound mechanism, elimination reactions, redox reactions,  photochemistry, nucleophiles, electrophiles, bond cleavage, reaction intermediates and kinetics. Here are some concepts related to organic reactions: Elimination reactions: Involves the elimination of two substituents from a molecule in one or two steps. Most elimination reactions result in the loss of at least one hydrogen atom and form double bonds. Substitution reactions: Involves the substitution of one atom for another. Addition... Show more

The molar extinction coefficient of B (MW = 180) is 4 x 10<sup>3</sup> L mol<sup>-1</sup> cm<sup>-1</sup>. One-liter solution of C which contains 0.1358 g pharmaceutical preparation of B, shows an absorbance of 0.411 in a 1 cm quartz cell. What is the percentage (w/w) of B in the pharmaceutical preparation?






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