Q.

5 moles of a mixture containing same number of moles of NaNO3, LiNO3, CaNO32, PbNO32 and AgNO3, was heated at 500°C .Total number of moles of O2g evolved is

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answer is 0002.25.

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Detailed Solution

2 LiNO3⟶Li2O+2NO2+12O2 (1 mole)                       (0.25 mole) 2CaNO32⟶2CaO+4NO2+O2  (1 mole)                       (0.5 mole) 2PbNO32⟶2PbO+4NO2+O2 (1 mole)                       (0.5 mole) 2AgNO3⟶2Ag+2NO2+O2 (1 mole)                       (0.5 mole) NaNO3⟶NaNO2+12O2 (1 mole)             (0.5 mole)∴ Total number of moles of O2 evolved =2.25 mole
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5 moles of a mixture containing same number of moles of NaNO3, LiNO3, CaNO32, PbNO32 and AgNO3, was heated at 500°C .Total number of moles of O2g evolved is