How many grams of HgO is to be heated to obtain the same weight of oxygen obtained by heating 50 gms of `KClO_3`? (K - 39, Hg = 200, Cl = 35.5)

Calculate the weight of oxygen obtained on heating 24.5 gm KClO_3 .

How much KClO_(3) must be heated to produce as much oxygen as that would be obtained from 200g of HgO? [Hg=200.5, K=39]

How much quantity of oxygen will be obtained when 24.5 gm potassium chlorate is heated? [K = 39 k, Cl = 35.5, O = 16]

12.25 gm KClO_3 is heated to produe oxygen. How much quantity of Zn is required to produce hydrogen to react with the produced oxygen? (Zn = 65, K = 39, O = 16, Cl = 35.5, H = 1)

How much KClO_3 should be heated for the production of oxygen to burn out 6g of carbon completely?

How much potassium nitrate should be heated to get enough oxygen required to completely burn 5 litres of hydrogen at STP? (K=39, N=14, O=16) [Ans. 22.53g]

Vapour pressure of chloroform (CHCl_3) and dichloromethane (CH_2Cl_2) at 298 K are 200 mm Hg and 415 mm Hg respectively. Calculate the vapour pressure of the solution prepared by mixing 25.5 g of CHCl_3 and 40 g of CH_2Cl_2 at 298 K and,

Calculate the mass of oxygen obtained by complete decomposition of 10kg of pure potassium chlorate (Atomic mass K=39, O=16 and Cl = 35.5) 2KClO_3 to 2KCl + 3O_2