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Wewaii [24]
3 years ago
14

S-2-iodooctane lost his opticaly activity in soln on tratment wwithNaI. Explain

Chemistry
1 answer:
IceJOKER [234]3 years ago
5 0

Answer:

Repeated SN2 reactions occur leading to the formation of a racemic mixture

Explanation:

S-2-iodooctane is a chiral alkyl halide with an asymmetric carbon atom. The presence of an asymmetric carbon atom implies that it can rotate plane polarized light and thus lead to optical isomerism. The two configurations of the compound are R/S according to the Cahn-Prelong-Ingold system.

However, when S-2-iodooctane is treated with sodium iodide in acetone, repeated SN2 reactions occur since the iodide ion is both a good nucleophile and a good leaving group. Hence a racemic modification is formed in the system with time hence we end up with (±)- Iodooctane.

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1. Given the specific heat of lead is 0.129 J/g.C and that it takes 93.4J of energy to
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Explanation:

The quantity of Heat Energy (Q) required to heat a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since Q = 93.4J

M = ?

C = 0.129 J/g.C

Φ = 40.4°C - 22.3°C = 18.1°C

Then, Q = MCΦ

Make Mass, M the subject formula

M = Q/CΦ

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What is the density of an object with a mass of 16 g and 3.0 ml
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Answer:

D = 5.3 g/mL

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Density = Mass over Volume

D = m/V

Step 1: Define

D = unknown

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D = 16 g / 3.0 mL

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