A student standardizes the concentration of a salt-water solution by slowly adding salt until an egg will just float.The procedure is based on the assumption that:
A)all eggs have the same volume
B)all eggs have the same weight
C)all eggs have the same density
D)all eggs have the same shape
E)the salt tends to neutralize the cholesterol in the egg

Question

Quizplus · Accepted Answer

The procedure of using an egg to standardize the concentration of a salt-water solution is based on the fact that all eggs have the same density. The salt increases the density of the water, allowing the egg to float when the concentration is just right. This is a reliable method because the density of an egg depends only on its composition, which is relatively consistent across all eggs of the same species. The other choices (A, B, D, and E) are not relevant to the procedure or the properties of the egg that are critical to its use in this context.

A Student Standardizes the Concentration of a Salt-Water Solution by Slowly