# What is the relative decrease in vapour pressure of an aqueous solution containing 2 moles? (2023)

## What is the relative decrease in vapour pressure of an aqueous solution containing 2 moles?

The relative decrease in the vapour pressure of an aqueous solution containing 2 mol NaCI in 3 mol H2O is 0.5.

What is the relative decrease in vapour pressure of an aqueous solution containing 2 moles of Cu NH3?

Relative decrease in vapour pressure of an aqueous solution containing 2 moles [Cu(NH3)3Cl] Cl in 3 moles H2O is 0.50.

What is the vapor pressure of a solution containing 2 moles?

The vapour pressure of a solution containing 2 moles of a solute in 2 moles of water (vapour pressure of pure water = 24 mm Hg) is 12 mm Hg.

What is the formula of relative decrease in vapour pressure?

=> x2= ∆p1/p1o

The above equation gives the relative lowering in vapour pressure, which is equal to the mole fraction of the solute.

What is the relative lowering of vapour pressure to the mole?

Therefore, the relative lowering of the vapour pressure of a solution is equal to the mole fraction of non-volatile solute present in the solution.

What is the lowering of vapour pressure due to the solute in a 2 molal aqueous solution at hundred degree celsius?

Lowering of vapour pressure due to solute in 1 molal aqueous solution at 100°C is. BOOK ANSWER - 13.44 Torr.

What is the vapour pressure of the solution if 2 moles of A and 3 moles of B are mixed to form an ideal solution?

If 2 moles of A and 3 moles of B are mixed to form an ideal solution vapour pressure of A and B are 120 and 180 mm of Hg respectively.

What is vapour pressure if 0.2 mol nacl is added in 2 mol water?

So, vapour pressure. =690. 90 Torr.

What is the vapour pressure of ideal solution containing 3 mole of a 2 mole of B at 300 k 602?

Correct option: c 90Explanation:

At 300K, the vapour pressure of an ideal solution containing 3 mole of A and 2 mole of B is 600 torr.

What is the vapour pressure of a solution containing 3 and 1 mol?

At 300 K, vapour pressure of the solution containing 1 mol of X and 3 mol of Y is 550 mmH g. At the same temperature, if 1 mol of Y is further added to this solution, vapour pressure of the solution increases by 10 mmHg.

## What is the relative decrease in vapour pressure of an aqueous NaCl?

Relative decrease in vapour pressure of an aqueous NaCl is 0.167.

What is the relative lowering in vapour pressure of 10%?

What is the relative lowering in vapour pressure of 10% aqueous solution of glucose : Q. Q. The relative lowering of vapour pressure of an aqueous solution containing a non volatile solute is 0.0125.

What is the decrease in vapor pressure with respect to solution?

LOWERING OF VAPOUR PRESSURE:

The vapor just above the solution is entirely of solvent molecules because the solute molecules are non-volatile. The vapor pressure of the mixture is observed to be decreased than that of the pure liquid at a specific temperature after the solute is added.

What is relative lowering of vapour pressure and how is it related to molar mass of solute?

Relative lowering of vapour pressure is a colligative property that means it depends upon the number of solute molecules present in the solution with respect to the total number of molecules present in the solution.

What is relative lowering of vapour pressure and calculate the molar mass of solute?

The relative lowering of vapour pressure =p10Δp=p10p10−p. Here, p10 is the vapour pressure of pure solvent and Δp is the vapour pressure lowering of solution. To determine the molar-mass of a solute, the following expression is used. p10Δp=W1M2W2M1. W1 and W2 are the masses of solvent and solute respectively.

What is the relative lowering of vapour pressure in the case of a solution of non volatile solute?

Relative lowering of vapour pressure of an aqueous solution containing nonvolatile solute is equal to mole fraction of solute. Now, molality =0.0125×10000.9875×18=0.70.

What is the formula of relative lowering of vapour pressure in terms of molality?

Relative lowering in vapour pressure

Then mole fraction of the solvent, X1 = N/(n+N) and mole fraction of the solute, X2= n /(N +n). Since the solute is non-volatile, it would have negligible vapour pressure. The vapour pressure of the solution is, therefore merely the vapour pressure of the solvent.

What is the relation between relative lowering of vapour pressure and molality of a solution?

On diluting the solution, its relative lowering of vapour pressure changes but molality remains constant.

What is the vapour pressure of aqueous solution lower than that of water?

Whereas the water is a solvent and does not have any non-ionic solutes which makes the compound with high vapour pressure. Thus, the vapour pressure of an aqueous solution of glucose is lower than that of water due to the presence of non-ionic solute-like glucose.

What is the ratio between lowering of vapour pressure and mole fraction?

According to Raoult's law the relative lowering of vapour pressure is equal to mole fraction of solute, i.e., the ratio of number of moles of solute to total number of moles of all component in solution.

## What is the relation between vapour pressure of solution and mole fraction?

According to Raoult's Law, you will double its partial vapor pressure. If you triple the mole fraction, its partial vapor pressure will triple - and so on. In other words, the partial vapor pressure of A at a particular temperature is proportional to its mole fraction.

Is vapour pressure of a solution directly proportional to the mole fraction of the solute?

For solutions containing non-volatile solutes, Raoult's law may be stated as : at a given temperature, the vapour pressure of a solution containing non-volatile solute is directly proportional to the mole fraction of the solvent.

What is the vapour pressure of 2.1 solution?

The vapour pressure of 2.1 % solution of a non-electrolyte in water at 100∘C is 755 mm Hg.

How do you calculate water vapor pressure in chemistry?

p v = R T [ 1 + B ′ p + C ′ p 2 + . . . ] Z is the compressibility factor, R is the gas constant for water vapor, B' is the second pressure-series virial coefficient, and C' is the third pressure-series virial coefficient.

What is the vapour pressure of NaCl?

The vapor pressure lowerings of solutions of sodium chloride at 25 °C have been tabulated  and it can be shown that a solution 2.6185 m in sodium chloride has a vapor pressure 2.181 mm Hg lower than that of pure water at the same temperature.

What is the vapour pressure at a given temperature of an ideal solution containing 0.2 mole of non volatile?

The vapour pressure at a given temperature of an ideal solution containing 0.2 mol of a non-vaolatile solute and 0.8 mol of solvent is 60 mm of Hg.

What is the total vapour pressure of 4 mol%?

The total vapour pressure of a 4 mole % solution of ammonia in water at 293 K is 50.0 torr; the vapour pressure of pure water is 17.0 torr at this temperature.

What is the vapour pressure of an ideal solution containing one mole of A at 300 K?

At 300 K, the vapour pressure of a solution containing 1 mole of A and 3 mole of B is 550 mm of Hg. At the same temperature, if one more mole of B is added to this solution, the vapour pressure of the solution increases by 10 mm of Hg.

What is the vapour pressure of 5% solution?

1 The vapour pressure of a 5% aqueous solution of a non-volatile organic substance at 373 K is 745 mm Hg.

What is the vapour pressure of an ideal solution containing 3 moles of a at 300 Kelvin?

At 300 K, the vapour pressure of an ideal solution containing 3 mol of A and 2 mol of B is 600 torr. At the same temperature, if 1.5 mol of A and 0.5 mol of C (non-volatile) are added to this solution, the vapour pressure of solution increases by 30 torr.

## What is vapour pressure of a solution containing 0.1 mol?

p=23. 76 mmHg.

What is the relative lowering of vapour pressure of an aqueous solution containing non volatile of molecular weight 60?

The relative lowering of vapour pressure of an aqueous solution of a non-volatile solute of molecular weight 60 (which neither dissociates nor associates in the solution) is 0.018.

Which aqueous solution has highest relative lowering of vapour pressure?

Note: Relative lowering of vapor pressure depends on concentration of solute. In the question, molalities of solutes are given. So, the solute whose concentration is greater that is, urea has the highest lowering of vapor pressure.

What is the relative lowering in vapour pressure of an aqueous solution of urea which is 6 6% by weight?

The relative lowering of vapour pressure of an aqueous solution of urea is 0.018.

Is the relative lowering in vapour pressure proportional to the ratio of number of 1?

According to Raoult's law the relative lowering of vapour pressure is equal to mole fraction of solute, i.e., the ratio of number of moles of solute to total number of moles of all component in solution.

What is the difference between lowering of vapour pressure and relative lowering of vapour pressure?

Lowering vapour pressure is affected by the solvent's vapour pressure and the number of particles in the solute. In contrast, relative lowering is affected by the number of particles in the solute. The ability of solutions to reduce vapour pressure is a cooperative attribute.

Why the relative lowering of vapour pressure is a colligative property?

Explanation: Relative lowering of vapour pressure is a colligative property because it depends on the concentration of a nonelectrolyte solute in solution, the number of particles of electrolyte solute in solution. It does not depend on the nature of solute molecules or particles.

What are the factors which decrease the vapour pressure of a substance?

Vapour pressure of any liquid is dependent upon some factors which are surface area, type of molecules, and temperature. If the temperature increases, vapour pressure also increases, and conversely if temperature decreases, vapour pressure decreases.

What is relative lowering of vapour pressure equal to *?

The relative lowering of vapour pressure is equal to the mole fraction of the non - volatile solute.

Why does relative lowering of vapour pressure depends on number of moles of solute?

Relative lowering of vapour pressure of a solution is a colligative property. A colligative property of a solution depends only on the number of solute particles and not on its nature. So relative lowering of vapor pressure of a solution depends on the number of solute particles only or the mole fraction of the solute.

## What is the relation between relative lowering of vapour pressure and depression in freezing point?

Freezing point is the temperature at which vapour pressure of solution and liquid phase becomes equal. Reason: On adding non-volatile solute, vapour pressure decreases so Freezing Point also decreases depression in Freezing Point.

What is the relative lowering in vapour pressure of an ideal solution containing?

Raoult's law is stated as: The relative lowering in vapor pressure of an ideal solution containing the non-volatile solute is equal to the mole fraction of the solute at a given temperature.

What is the relative decrease in vapour pressure of an aqueous solution of glucose?

Relative lowering of vapour pressure of a dilute aqueous solution of glucose is found to be 0.018.

What is the vapour pressure of an ideal solution containing 2 moles of liquid A at 300 K?

At 300 K, the vapour pressure of an ideal solution containing 1 mole of liquid A and 2 moles of liquid B is 500 mm of Hg. The vapour pressure of the solution increases by 25 mm of Hg, if one more mole of B is added to the above ideal solution at 300 K.

Is relative lowering of vapour pressure equal to mole fraction of solute or mole fraction of solvent?

The correct option is B

The relative lowering of vapour pressure is equal to the mole fraction of the solute in the solution.

What should be the pressure of 2 mole of an ideal gas?

n=2 molesT=546 KV=44.8 LP=? Ideal Gas equationPV=nRTP=2×0.0821×54644.8P=2atm(approximately) Q.

What is the vapour pressure of an ideal solution containing 2 moles at 310 K?

Example 21 At 310 K, the vapour pressure of an ideal solution containing 2 moles of A and 3 moles of B is 550 mm of Hg. At the same temperature, if one mole of B is added to this solution, the vapour pressure of solution increases by 10 mm of Hg.

Which III is true for 2 moles of ideal gas?

Therefore the correct option is: (C) PV = 2RT.

What is the relative decrease in vapour pressure of an aqueous solution containing non volatile?

The relative lowering of vapour pressure of an aqueous solution containing a non volatile solute is 0.0125 .

What is the relative decrease in vapour pressure of an aqueous NaCl 1 by 6?

The molality ... Relative decrease in vapour pressure of an aqueous NaCl is 0.167 .

## How is relative lowering of vapour pressure related to molar mass of a solute?

Relative lowering of vapour pressure is a colligative property that means it depends upon the number of solute molecules present in the solution with respect to the total number of molecules present in the solution.

What is the relationship between relative lowering of vapour pressure and molality?

On diluting the solution, its relative lowering of vapour pressure changes but molality remains constant.

Is relative lowering in vapour pressure proportional to the ratio of number of solute?

According to Raoult's law the relative lowering of vapour pressure is equal to mole fraction of solute, i.e., the ratio of number of moles of solute to total number of moles of all component in solution.

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