Question

how many moles are there in 672dm^3 of ozone gas at stp with explanation ​

Answer 1

Answer:

30 moles

Explanation:

here 672dm^3 = 672 litres as 1000cm^3 = 1 litre and 10cm = 1dm so 1000 × 1/10 × 1/10 × 1/10 hence 1dm^3 = 1 litre now it is asked what are the number of moles, so moles = vol. of gas (litres)/22.4 [ at 1 ATM and 273 k ; not the new standard ]

hence 672/22.4 = 30 moles of O3 and if we need the number of moles for 1 oxygen atom then...

3 parts 'O' = 1 part 'O3'

so 1 mole 'O' = 1/3 moles 'O3' so

it will be 10 moles of 'O' atom

Answer 2

Answer:

Explanation:672/22.4