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

Answer:

2700 kg/m³

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 * $\frac{1kg}{1000g}$ = 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 * $(\frac{100cm}{1m} )^3$ = 2700 kg/m³

The answer is 2700 kg/m³.