Stoichiometry Questions

• In the reaction, represented by Na2CO3 + HC1 → NaHO3 + NaCl, the equivalent weight of Na2CO3 is
• Boiling point of a non-homogeneous mixture of immiscible liquids is __________ that of any one of its separate components.
• A vapor whose partial pressure is less than its equilibrium vapor pressure is called a __________ vapor.
• 'Cox' chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the
• If 1.5 moles of oxygen combines with aluminium to form Al2O3, then the weight of aluminium (atomic weight = 27 ) used in this reaction is __________ gm.
• One of the specific gravity scales is "Brix" (used speicifically for sugar solution). It is defined as
• The maximum adiabatic flame temperature of fuels in air is __________ the maximum flame temperature in pure oxygen.
• Pick out the wrong statement.
• The density of a gas at N.T.P.is 'ρ'. Keeping the pressure constant (i.e. 760 mm Hg), the 3 density of the gas will become at a temperature of __________ °K
• Raoult's law states that 'the equilibrium vapor pressure that is exerted by a component in a solution is proportional to the mole fraction of that component'. This generalisation is based on the assumption that the
• A liquid is in equilibrium with its vapor at its boiling point. On an average, the molecules in the liquid and gaseous phases have equal
• Pick out the correct conversion.
• The osmotic pressure of a solution is directly proportional to the
• Two solutions A1 and A2 have pH value of 2 and 6 respectively. It implies that the solution
• The molecular velocity of a real gas is proportional to (where, T = absolute temperature of the gas).
• In case of vapor-liquid equilibria, which of the following does not account for gas phase deviation from ideality?
• Which of the following is followed by an ideal solution?
• The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg.?
• If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will
• "The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes". This is the __________ law.