Q4 of 75 Page 58

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


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