What is the density of an block of salt having a mass of 8.0 g and a volume of 25 cm3?
A. 200 g/cm3
B. 2.0 g/cm3
C. 3.2 g/cm3
D. 0.32 g/cm3

Respuesta :

Do the formula D = m/v 

d = ( 8.0 grams ) / ( 25 c ) 

d = 0.32 grams / c

d = ( 0.32 g / c ) ( 1.0 x 10^6 c / c ) ( 1 kg / 1000 kg ) 

d = 320 kg / c

The answer is choice C. 
Density is mass divided by volume
So...
D = 8/25 = 0.32 g/cm^3