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If all the oxygen atoms present in 4 moles H2SO4, 2 moles P4O10 and 2 moles NO2 are collected for the formation of O2 gas molecules. Calculate the volume of O2 gas formed at 2 atm pressure and 273k temperature.

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Important Questions on Some Basic Concepts of Chemistry

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The numerical value ofNn (where, N is the number of molecules in a given sample of gas and n is the number of moles of the gas) is
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One gram equimolecular mixture of Na2CO3 and NaHCO3 is reacted with 0.1 N HCl, the millilitres of 0.1 N HCl required to react completely with the above mixture is
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100 millimoles of dichloroacetic acid (CHCl2COOH) can neutralize how many moles of ammonia to form ammonium dichloroacetate?
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HNO3 oxidizes NH4+ ions to nitrogen and itself gets reduced to NO2. The number of moles of HNO3 required by 1 mol of NH42SO4 is

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0.14 g of a substance when burnt in oxygen yields 0.28 g of oxide. The substance is -
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Two solutions of a substance (non-electrolyte) are mixed in the following manner: 480 mL of 1.5 M first solution +520 mL of 1.2 M second solution. What is the molarity of the final mixture?