Question

The density of aluminum is 2.7 g/cm3.

Part A
What is its density in kilograms per cubic meter?
Express your answer in kilograms per cubic meter to two significant figures.

Answer 1

2700 kg/m³

Step-by-step explanation:

First let's convert 2.7 g/cm³ to kg/cm³, keeping in mind that 1 kilogram equals 1000 grams:

• 2.7 g/cm³ *
  `(1kg)/(1000g)` = 0.0027 kg/cm³

Finally we need to convert 0.0027 kg/cm³ to kg/m³, keeping in mind that 1 meter equals 100 centimeters, as follows:

• 0.0027 kg/cm³ *
  `((100cm)/(1m) )^3` = 2700 kg/m³

The answer is 2700 kg/m³.