मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Define Mole fraction. - Chemistry

Advertisements
Advertisements

प्रश्न

Define Mole fraction.

व्याख्या
Advertisements

उत्तर

The mole fraction of a particular component in a solution is the ratio of the number of moles of that component to the total number of moles of all the components present in the solution.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Solutions - Exercises [पृष्ठ २७]

APPEARS IN

एनसीईआरटी Chemistry Part 1 and 2 [English] Class 12
पाठ 1 Solutions
Exercises | Q 1.3 (i) | पृष्ठ २७

संबंधित प्रश्‍न

A solution of glucose in water is labelled as 10% w/w, what would be the molality and mole fraction of each component in the solution? If the density of solution is 1.2 g mL−1, then what shall be the molarity of the solution?


A sample of drinking water was found to be severely contaminated with chloroform (CHCl3) supposed to be a carcinogen. The level of contamination was 15 ppm (by mass):

  1. express this in percent by mass.
  2. determine the molality of chloroform in the water sample.

A sample of 12 M Concentrated hydrochloric acid has a density 1.2 M gL-1 calculate the molality.


Molarity of liquid HCl will be if the density of the solution is 1.17 gm/cc.


The mole fraction of the solute in one molal aqueous solution is ____________.


Molarity of H2SO4 is 18 M. Its density is 1.8 g/ml. Hence molality is:


Which of the following concentration terms is/are independent of temperature?


A solution is prepared by dissolving 10 g NaOH in 1250 mL of a solvent of density 0.8 mL/g. The molality of the solution in mol kg–1 is:


4 L of 0.02 M aqueous solution of NaCl was diluted by adding one litre of water. The molality of the resultant solution is ______.


Cone. H2SO4 is 98% H2SO4 by mass has d = 1.84 g cm−3. Volume of acid required to make one litre of 0.1 M H2SO4 is:


Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?

V/V (volume percentage)


Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?

(iii) w/V (mass by volume percentage)


Match List-I with List-II:

List-I List-II
A. ppm I. molL-¹
B. Molarity II. No units
C. Molality III. Independent of temperature
D. Mole fraction IV. Very dilute solutions

Choose the correct answer from the options given below:


The de Broglie wavelength of a car of mass 1000 kg and velocity 36 km/hr is :


The unit of ebullioscopic constant is


A solution has been prepared by dissolving 5 g of urea in 95 g of water. What is the mass percentage of urea in the solution?


What is molarity of resulting solution obtained by mixing 8.5 L of 0.5 m urea solution and 500 ml of 2 m urea solution?


3.36 M sulphuric acid solution is 29% H2SO4 calculate the density of the solution.


The molarity of the solution prepared by dissolving 6.3 g of oxalic acid (H2C2O4 · 2 H2O) in 250 mL of water in mol L-1 is x × 10-2. The value of x is ______. (Nearest integer)

[Atomic mass: H : 1.0, C : 12.0, O : 16.0]


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×