Question

Volume of a sample of red brown gas NO2 is 112ml.How many oxygen atoms does the sample contain.​

Answer 1

Answer:

Don't know sorry for that

Answer 2

Explanation:

1 mole of no2 contains 2 miles of oxygen atoms.... equation-1

1 mole of no2(gas) occupies 22.4 litres or 22400 ml of volume at stp.......equation 2

accordingly, 112 ml of no2 contains 1/200 moles of no2 gas. ( from equation 2)

1/200 moles of no2 gas contains 1/100 moles of oxygen atoms( from equation 1).

1 mole of oxygen atoms contains 6.023 * 10 raise to 23 atoms

Therefore 1/100 moles will contain 6.023*10 raise to 21 atoms

hope it helps