Question

The density of aluminium is 2.70 g/cm3. Find the mass in grams of a bar of aluminum measuring 2.03 cm by 3.0056 cm by 13.4 cm.

Answer 1

221g is the mass of the bar of aluminum

Step-by-step explanation:

The volume of a bar of aluminum is obtained as:

Length*Width*height = Volume

That means the volume of the bar is:

2.03cm * 3.0056cm * 13.4cm = 81.8cm³

Now, the density of 2.70g/cm³ means the aluminum weighs 2.70g per cm³. The mass of 81.8cm³ is:

81.8cm³ * (2.70g / 1cm³) =

221g is the mass of the bar of aluminum