Question

If 7.000g of a solid displaced 21.0 mL of water when dropped into a graduated cylinder, what is the density of the solid?

A. 0.3 g/mL
B. 0.33 g/mL
C. 0.333 g/mL
D. 0.3333 g/mL
E. 0.3333 g/L

Answer 1

The density of the solid is found by dividing the mass (7.000g) by the volume of water displaced (21.0mL), resulting in a density of 0.3333 g/mL. Therefore, the correct option is D.

Step-by-step explanation:

To find the density of the solid, you divide the mass of the solid by the volume it displaces.

Density is commonly expressed in grams per milliliter (g/mL) for solids and liquids, and in grams per liter (g/L) for gases.

Since 7.000 g of the solid displaced 21.0 mL of water, the density calculation would be:

Density = Mass / Volume

= 7.000 g / 21.0 mL

= 0.3333 g/mL

Therefore, the correct answer is D. 0.3333 g/mL.