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A2 chemistry need help!!

tanzina500

tanzina500

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answers needed 4 a2 chemistry hodder review questions!!hav completed them n got bunch of probs!!!any help will b appreciable :|
 
tanzina500

tanzina500

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explain why a racemic mixture of optical isomers has no effect on the plane polarised light.
 
étudiante

étudiante

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tanzina500 said:
explain why a racemic mixture of optical isomers has no effect on the plane polarised light.
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The racemic mixture has equal quantities of both + and - enantiomers. Since they rotate light in opposite directions, the nett effect is nothing.

(LIke half the solution turns it thru x degree clockwise BUT the other half turns it through x degrees anticlockwise so no overall effect.)
 
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