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STOICHIOMETRY QUIZ

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

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One micron is equal to __________ cm.

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No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules

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Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent?

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Solutions having the same osmotic pressure are called __________ solutions.

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Avogadro number is the number of molecules in one __________ of a gas.

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Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of

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The average value of heat of neutralisation of dilute solution of strong acids and strong bases is about __________ kcal/kg.mole of water formed.

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In a binary liquid solution of components A and B, if component A exhibits positive deviation from Raoult's law, then component B

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Osmotic pressure of a dilute solution of a non volatile solute in a solvent obeying Raoult's law is proportional to the

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