The boiling point of carbon tetrachloride (CCl4) is higher than that of chloroform (CHCl3). Since chloroform (CHCl3) is polar and carbon tetrachloride (CCl4) is not, we would predict that the dipole-dipole forces would cause chloroform (CHCl3) to have a higher boiling point that tetrachloride (CCl4). What accounts for tetrachloride have a higher boiling point than chloroform?

CCl4 has greater london dispersion forces, so a higher boiling point

Explanation:

Step 1: Data given

The boiling point of carbon tetrachloride (CCl4) is higher than that of chloroform (CHCl3)

Chloroform (CHCl3) is polar  and carbon tetrachloride (CCl4) is nonpolar.

Molar mass of carbon tetrachloride (CCl4) = 153.82 g/mol

Molar mass of chloroform (CHCl3) = 50,49 g/mol

Step 2:

Carbon tetrachloride (CCl4) has is larger than chloroform, this means it has a greater mass per mol( molar mass) than chloroform.

Carbon tetrachloride (CCl4) has more electrons than chloroform.

Since Carbon tetrachloride (CCl4) has more electrons, it's more polarizable.

Since it's more polarizable, it will have greater London dispresion forces.

These London dispersion forces between the CCl4 molecules will raise the boiling point above the boiling point of chloroform.

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the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.