What will be the mass of oxygen liberated by decomposition of 200 mL hydrogen peroxide solution with a strength of 34 g per litre ?

What will be the mass of oxygen liberated by decomposition of 200 mL h

1.	What will be the mass of oxygen liberated by decomposition of 200 mL hydrogen peroxide solution with a strength of 34 g per litre ?
Answer» `25.5 g` `3.0 g` `3.2 g` `4.2 g` Solution :STRENGTH of the solution = 34 g/L 1 L of the solution contains 34 g of `H_(2)O_(2)` 200 mL of the solution contains `(34)/(1000)xx200=6.8 g` of `H_(2)O_(2)` `underset(2xx34 g)(2H_(2)O_(2))to 2H_(2)O+underset(32 g)(O_(2))` 68 g of `H_(2)O_(2)` GIVES 32 g of `O_(2)` 6.8 g of `H_(2)O_(2)` gives `= (32)/(68)xx6.8=3.2g` of `O_(2)`