Predict the mass possessed by certain number of oxygen atoms which is equal to the number of molecules present 1g of hydrogen gas?
Mass of oxygen atoms = number of molecules present 1g of hydrogen gas
Number of molecules in 1g H2 = 1/2 mole
⇒ 1/2×6.022 × 1023atoms
⇒ 3.01 × 1023
Thus, the mass possessed by certain number of oxygen atoms is 3.01 × 1023