Stoichiometry &...

It takes 2.56 ×10^–3 equivalents of KOH to neutralize 0.125 g H₂XO₄. The number neutrons in x is

0.1 lit of 0.01 M KMnO₄ oxidized 100 ml H₂O₂ in acidic medium. Volume of same KMnO₄ required in alkaline medium to oxidize 0.1 lit of same H₂O₂ will be (Mn changes to Mn⁺² in acidic medium and MnO₂ in alkaline medium)

The hydrated salt Na₂SO₄. nH2O, undergoes 55.9% loss in weight on heating and becomes anhydrous. The value of n will be

8 g of sulphur is burnt to form SO₂ which is oxidized by Cl₂ water. The solution is treated with BaCl₂ solution. The amount of BaSO₄ precipitated is

A 10.0 g sample of a mixture of calcium chloride and sodium chloride is treated with Na₂CO₃ to precipitate the calcium as calcium carbonate. This CaCO₃ is heated to convert all the calcium to CaO and the final mass of CaO is 1.62 gms. The % by mass of CaO is 1.62 gms. The % by mass of CaCl₂ in the original mixture is

How many volumes of 1 M KMnO₄ ion will react with 1 mol of ferrous oxalate in acidic medium

If equal volumes of 10 M KMnO₄ and 10 M K₂Cr₂O₇ solutions are allowed to oxidize Fe(II) to Fe(III) in acidic medium, then Fe(II) oxidized will be

When 10 ml of ethyl alcohol (density = 0.7893 g/mol) is mixed with 20 ml of water (density = 0.9971 g/mol) at 25°C, the final solution has a density of 0.9571 g/ml. The percentage change in total volume on mixing is

Calculate the number of oxygen atoms required to combine with 7 g of N₂ to form N₂O₃ when 80% of N₂ is converted into N₂O₃

The density of 1 M solution of NaCl is 1.0585 g/ml. The molality of the solution is