Question

The half life period is 60 minutes when the initial concentration of a second order reaction is 0.02 moles dm3 . Calculate the value of rate constant . Ans . 0.873 dm3 mol min​

Answer 1

Answer:

Solution: Among Mg and MgO ,only Mg gives Hydrogen gas with acid . 1 mole i.e 24gm of "Mg' gives 22.4 lit of H2 at STP. ... of Mg=2.4gm and wt of MgO in the mixture= 10-2.4= 7.6gm.