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3 years ago

The following compounds have similar molecular weights. which would be expected to have the lowest boiling point?

Chemistry

1 answer:

Oksanka [162]3 years ago

3 0

Answer:

Methane (B) is expected to have the lowest boiling point.

Explanation:

There are to ways of solving this problem.

The first one is considering the physical state of matter that this compounds are found in normal conditions (room temperature):

(A) calcium carbonate - solid

(B) methane - gas

(D) dimethyl ether (CH₃OCH₃) - liquid

Methane is the only gas, therefore it has the lowest boiling point.

The second one is considering the molecular interactions between the molecules of each compound:

(A) calcium carbonate - it is a salt - eletrostatic interactions between ions - very strong

(B) methane - non-polar molecule - induced dipole - very weak

(D) dimethyl ether (CH₃OCH₃) - liquid - dipole-dipole - relatively strong

The intermolecular interactions in methane are the weakest, therefore it has the lowest boiling point.

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2 years ago

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This question is describing the following chemical reaction at equilibrium:

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Answer:

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