Question

3. The air today is approximately one-fifth

oxygen. Calculate the approximate volume of
oxygen in 200cm3 of air.

Answer 1

Answer: 40cm^3

Step-by-step explanation:

Since the The air today is approximately one-fifth oxygen, the approximate volume of oxygen in 200cm3 of air would be:

= 1/5 × 200

= 40cm

The answer is 40cm^3