Chemistry questions
29404 published questions with worked solutions.
- For a dilute solution Raoult's states that
- "The relative lowering of the vapour pressure is equal to the mole fraction of the solute." This law is called
- Which of the following is not correct for an ideal solution ?
- The vapour pressure of two liquids P and Q are 80 and 60 torr respectively. The total vapour pressure of solution obtained by...
- The vapour pressure of pure liquid A is 0.80 atm. On mixing a non-volatile B to A, its vapour pressure becomes 0.6 atm. The mole...
- At 300 K when a solute is added to a solvent its vapour pressure over the mercury reduces from 50mm to 45mm. The value of mole...
- When an ideal binary solution is in equilibrium with its vapour, molar ratio of the two components in the solution and in the...
- Determination of correct molecular mass from Raoult's law is applicable to
- If P^ and P are the vapour pressure of a solvent and its solution respectively and N_1 and N_2 are the mole fraction of the...
- The vapour pressure of a solution increases when
- Vapour pressure of a solution is
- 60 gm of Urea (Mol.wt.60) was dissolved in 9.9 moles of water. If the vapour pressure of pure water is P^o, the vapour pressure...
- The vapour pressure (VP) of a dilute solution of non volatile solute is P and the VP of pure solvent is P^0. The lowering of the...
- The relative lowering of the vapour pressure is equal to the ratio between the number of
- The law of relative lowering of vapour pressure was given by
- The vapour pressure of a liquid depends on
- According to Raoult's law the relative lowering of vapour pressure of a solution of volatile substance is equal to
- One mole of sugar is dissolved in two mole of water. The V.P. of the solution relative to that of pure water is
- The vapour pressure of water at 20^ is 17.54mm. When 20 g of a non-ionic substance is dissolved in 100g of water, the vapour...
- An aqueous solution of glucose was prepared by dissolving 18 g of glucose in 90 g of water. The relative lowering in vapour...