How much quantity of `KClO_3` required to produce 5.6 lit oxygen at S.T.P.? [K = 39, 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 quantity of HCl required to nutralize 40 gm NaOH ?[H=1,O = 16,Na = 23,Cl = 35.5]

What is the quantity of iron required to produced 5.6 L of hydrogen at STP by passing steam over p red not iron (Fe = 56)

How much KClO_(3) is needed to produce enough oxygen for burning 10g of coke? (C=12, Cl=35.5, O=16)

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]

Calculate the amount of NH_4Cl have to mixed with Ca(OH)_2 to produce 89.6 L NH_3 at STP. [N = 14, H = 1, Cl = 35.5]

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

6g of an impure sample of potassium chlorate gives 1.9g of oxygen on heating in presence of a catalyst. What is the percentage of purity of the sample. [K = 39,Cl = 35.5, O = 16]

If a particular HCl solution contains 22% of the acid by weight, then how much quantity of this acid solution will be required to produce 1L CO_(2) gas at 27^(@)C & 760 mm pressure from pure CaCO_(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]