Stoichiometry 80 kg of Na₂SO₄ (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na₂SO₄ .10H₂O crystals separate out. The weight fraction of Na₂SO₄ in the remaining solution is 0.18 1 0.24 0.18 1 0.24 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry For a given mass of a gas at constant temperature, if the volume 'V' becomes three times, then the pressure 'P' will become 3P 9P 9P² P/3 3P 9P 9P² P/3 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The value of gas constant 'R' is __________ kcal/kg.mole.°C. None of these 3.99 1.987 2.79 None of these 3.99 1.987 2.79 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A sample of well water contains 140 gm/m³ Ca²⁺ ions and 345 gm/m³ Na⁺ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO₃ in gm/m³ is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16) 140 350 485 345 140 350 485 345 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Kinetic theory of gases stipulates that, the Energy is lost during molecular collisions Molecules possess appreciable volume Absolute temperature is a measure of the kinetic energy of molecules None of these Energy is lost during molecular collisions Molecules possess appreciable volume Absolute temperature is a measure of the kinetic energy of molecules None of these ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 1 gm mole of methane (CH₄) contains 3 gms of carbon 3.01 x 1023 molecules of methane 4 gm atoms of hydrogen 6.02 x 1023 atoms of hydrogen 3 gms of carbon 3.01 x 1023 molecules of methane 4 gm atoms of hydrogen 6.02 x 1023 atoms of hydrogen ANSWER DOWNLOAD EXAMIANS APP
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