Question

2. Calculate the volume of copper of mass 2000 kg when its density is 8.4 g/cm3.​

Answer 1

Answer:

D=M/V

V=M/D

 =2000000/8.4

 =238095.23g/cm^3

Answer 2

Given:

• Mass of copper = 2000 kg
• Density of copper = 8.4 g/cm³

To find:

Volume of copper = ?

Solution:

In the given question, we are asked to find out the volume of copper.

Step 1: Convert kg into grams because grams is the S.I unit.

1 kg = 1000 g

2000 kg = 2000 × 1000 = 20,00,000 grams

Step 2:

Apply the formula:

【Density = Mass ÷ Volume】

⇒ 8.4 = 2000000 ÷ Volume

⇒ 8.4 = (2 × 10⁶) ÷ Volume

⇒ 8.4 × Volume = 2 × 10⁶

⇒ Volume = (2 × 10⁶) ÷ 8.4

⇒ Volume = 0.238 × 10⁶‍

∴ 「Volume of copper = 0.238 × 10⁶ g」