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Chapter 14: Q1P. (page 711)

Rank the given solvents in decreasing order of their ability to dissolve each compound

(a) HCOO-Na+

(b)

(c)


Solvents

Ethyl ether, water, ethanol, dichloromethane

Short Answer

Expert verified

(1) Decreasing order of solvents’ ability to dissolve sodium acetate:

Water >ethanol > ethyl ether>dichloromethane

(2) Decreasing order of solvents’ ability to dissolve 2-methylnapthalene:

Dichloromethane >ethyl ether >ethanol >water

(3) Decreasing order of solvents’ ability to dissolve 1-napthol:Dichloromethane>ethyl ether>ethanol>water

Step by step solution

01

Solubility of sodium acetate

The general principle followed to determine solubility is,“like dissolves like.”

Compounds which have similar polarity tend to get dissolve in each other. Thus,

sodium acetate which is ionic and most polar out of the three solutes given, will dissolve

in water which is most polar out of the given solvents. Sodium acetate will dissolve

slightly in ethanol and will be insoluble in ethyl ether and dichloromethane

02

Solubility of 2-methylnaphthalene and 1-naphthol

2-methylnapthalene and 1-napthol are non-polar; and out of the given solvents,

ethyl ether and dichloromethane are non-polar. Thus, 2-methylnapthalene and 1-napthol will be insoluble in water, partially soluble in ethanol, and soluble in diethyl ether

and dichloromethane

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Most popular questions from this chapter

Show how you would convert 2-bromocyclohexanol to the following diol. You may use any additional reagents you need.

Question. Predict the major products of the following reactions, including stereochemistry where appropriate.

  1. 2,2-dimethyloxirane +(oxygen-labelled water)
  2. 2,2-dimethyloxirane +
  3. (2S,3R)-2-ethyl-2,3-dimethyloxirane +

(2S,3R)-2-ethyl-2,3-dimethyloxirane +

Show how you would accomplish the following transformations. Some of these examples require more than one step.

Question. Give the structures of the intermediates represented by letters in this synthesis.

Write structural formulas for the following compounds

  1. methyl isopropyl ether (b) di-iso-butyl ether (c) 2-methoxyoctane

(d) diallyl ether (e) allyl ethyl ether (f) cycloheptane oxide

(g) trans-2,3-epoxyheptane (h) (2R,3S)-2-ethoxypentan-3-ol (i) cis-2,3-dimethyloxirane
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