A perfect cube of rock that is 3 cm long on each side weighs 94.5 grams. What is the rock’s density?

Answer 1

Sorry, Click, you're on the right track, but you got a number of things wrong in your answer.

The cube has a volume of 27.0 cm^3, or 0.000027 m^3 (not 2.7 m^3) and it has a mass of 0.0945 kg, not 0.945 kg. You also need to divide mass by volume, not the other way around.

The actual density is 94.5 g / 27.0 cm^3 (or if you prefer, 0.0945 kg / 0.000027 m^3) = 3.5 g / cm^3 (or 3500 kg / m^3)

Answer 2

Density is mass per volume, and usually measured in meters cubed and kilograms. That's 2.7m^3 and .945 kilograms so the density is 2.85kg*m^3