What is the observed rotation when 0.1 M solution of ( R ) − 2 butanol is mixed with an equal volume of 0.05 M solution of racemic 2-butanol and the resulting solution is taken in a cell of 5 cm log t

Question

What is the observed rotation when 0.1 M solution of ( R ) − 2 butanol is mixed with an equal volume of 0.05 M solution of racemic 2-butanol and the resulting solution is taken in a cell of 5 cm log tube in a polarimeter? The specific rotation of (R) -2 - butanol + 13 9 ∘ . (in degrees)

TestHub · Accepted Answer

Concentration = 1000 74 × 0.05 ​ = 3.7 × 1 0 − 3 g ⋅ mL L − 1 [ d ] o b s ​ = [ d ] p a re ​ × l × C = 13.9 × 0.5 × 3.7 × 1 0 − 3 = 0.2 6 0

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