Question

4. Lead has a density of 11.5g/cmº. A rectangular block of lead measures 7cm x5cmx2cm.

a) Find the volume of the block of lead.
b) Find the mass of the block of lead

Answer 1

(a) 70cm³

(b) 805 grams

Step-by-step explanation:

(a) V = L×B×H

= 7cm×5cm×2cm

= 35cm×2cm

= 70cm³

(b) Mass = Volume × Density

= 70cm³ × 11.5g/cm³

= 805 grams