Based on Atomic Size, Which Would You Expect to Be

question 27

Multiple Choice

Based on atomic size, which would you expect to be more soluble in water: helium, He, or nitrogen, ?

• A) Although He is smaller, its outer orbital is filled and the atom will have little attraction to the water molecules.
• B) Since He atoms are smaller, more of them can fit into solution, so it has a higher solubility in water.
• C) Nitrogen atoms are bigger and so nitrogen molecules should be more soluble in water due to greater dipole-induced dipole attractions.
• D) He atoms are bigger and so helium molecules should be more soluble in water due to greater dipole-induced dipole attractions.

---

Definitions:

Cyclopentanone

A five-membered cyclic ketone, characterized by a ring structure containing one ketone group, used as a precursor in the synthesis of fragrances and pharmaceuticals.

Hydrate

A compound typically formed by the absorption of water molecules into its structure, often resulting in a crystalline form.

PhCOCl

PhCOCl refers to benzoyl chloride, a colorless, fuming liquid with a pungent smell, used in organic synthesis, represented by the formula C6H5COCl.

Carbonyl Group

A functional group consisting of a carbon atom double-bonded to an oxygen atom (C=O) found in aldehydes, ketones, carboxylic acids, and esters.