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Mice21 [21]
4 years ago
8

The nucleophilic addition reaction depicted below involves a prochiral ketone carbon atom reacting with a nucleophilic hydride i

on source (LiAlH4 or NaBH4) and, subsequently, a proton source (e.g., H2O or dilute aq. HCl). Consequently, the reaction produces a racemic mixture of an alcohol. Finish drawing the structures of the products resulting from nucleophilic attack upon the front and back faces of the carbonyl group, being careful to specify the stereochemistry via wedge-and-dash bonds.

Chemistry
1 answer:
Morgarella [4.7K]4 years ago
3 0

Answer:

we are given the 3-methyl2 butanone and upon the reduction with LiAIH4 there is formed alcohol, there are two possible side attack,

  1. from the back side
  2. from the front side.

therefore, whenever the front side attacks then the -CH3 moves back  the plain and the H will be above the plane. More so, when  attack from the back side the H moves below the plane and -CH3 moves above the plane. -OH is evident in the plane. see the attachment below to view the structure.

Explanation:

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3 years ago
The actual density of pennies made before 1982 is about 8.8 g/mL. The actual density of pennies made after 1982 is about 7.2 g/m
trasher [3.6K]

To obtain more accurate values of the densities of the pennies:

  • more trials can be conducted to reduces the effect of measurement errors
  • more care should be taken in taken volume measurements by displacement of water to avoid splashing of water.

<h3>What is density of a substance?</h3>

The density of a substance is the ratio of the mass of the substance to the volume of that substance.

It is a measure of the compactness of the matter in a substance.

The densities of the pennies made before 1982 was 8.7 g/ml

The actual density of pennies made before 1982 is about 8.8 g/mL.

The densities of the pennies made after 1982 was 6.9 g/ml

The actual density of pennies made after 1982 is about 7.2 g/mL.

Due to several random and experimental errors, the values obtained from the experiment are not exactly the same with the accepted values.

To obtain more accurate values:

  • more trials can be conducted to reduces the effect of measurement errors
  • more care should be taken in taken volume measurements by displacement of water to avoid splashing of water.

In conclusion, the densities varied as as a result of random and experimental errors.

Learn more about density at: brainly.com/question/1354972

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2 years ago
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