A sample of ozone gas is found to be 40% dissociated into oxygen. The average molecular mass of sample should be :

The Normality of 4.9% (w/w) H2SO4 solution having density .02 gm/ml is ?

Ans key: (1.02 N )

Calculate the normality of HCl solution whose 500 ml is utillised to neutralise the 1500 ml of N/10 NaOH solution.

And : (3/10)