Question

Which of the following contains the same number of molecules?
(A) 1g of O2 2g of SO2
(B) 1g of CO2, 1g of N2O
(C) 112ml of O2 at STP, 224ml of Helium at 0.5 atm and 273K
(D) 1g of oxygen, 1g of ozone​

Answer 1

Answer:

(A) 1g of O² & 2g of SO²

Explanation:

1 mole = 6.022 x 1023 atoms

1 g = Na/mass of atom

= Na/32

(For o2)

1 mole = 6.022 x 1023 atoms

1 g = Na/mass of atom

= Na x 2/64

= Na/32

(For so 2)

Hence Proved