Which of the following is true of the relationship between density expressed in g/mL and specific gravity?
A) They have different numerical values and different units.
B) They have the same numerical value and the same units.
C) They have the same numerical value but specific gravity is dimensionless.
D) They have the same units but different numerical values.

Question

Quizplus · Accepted Answer

Specific gravity is the ratio of the density of a substance to the density of a reference substance (usually water at 4°C), and is therefore dimensionless. While density is expressed in g/mL or g/cm³, specific gravity has no units. However, they have the same numerical value when referring to the same substance and reference substance. Therefore, option C is the correct answer.

Which of the Following Is True of the Relationship Between