Problem: Here are the structure for methane, ethane, and ethylene. Which of the following explain the variations in solubility for methane, ethane, and ethylene? Check all that apply. a. There are differences in molecular size and shape and thus in the strength of dispersion forces. b. There are differences in bonding (σ or π) between atoms within the molecules. c. There are differences in the molecular dipoles of the molecules. d. There is increased hydrogen bonding with an increasing number of hydrogen atoms.

FREE Expert Solution

We’re being asked to identify which among the given statements explain the variations in solubility for methane, ethane, and ethylene.


Let’s take a look at each statement:

a. There are differences in molecular size and shape and thus in the strength of dispersion forces. 

as seen from the structure of methane, ethane, and ethylene are only composed of C and H, hence they are hydrocarbons

hydrocarbons are nonpolar → they can only exhibit London-Dispersion Forces
London-Dispersion Forces affected by structure, arrangement of atoms or shape, size, molecular weight

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Problem Details

Here are the structure for methane, ethane, and ethylene. Which of the following explain the variations in solubility for methane, ethane, and ethylene? 

Check all that apply. 

a. There are differences in molecular size and shape and thus in the strength of dispersion forces. 

b. There are differences in bonding (σ or π) between atoms within the molecules. 

c. There are differences in the molecular dipoles of the molecules. 

d. There is increased hydrogen bonding with an increasing number of hydrogen atoms.

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