Advertisements
Advertisements
Question
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
x (mole fraction)
Advertisements
Solution
Mole fraction of a component (x) = `"No. of moles the component"/"Total number of moles of all the component"`
APPEARS IN
RELATED QUESTIONS
Why is molality of a solution independent of temperature?
Define molality.
Define Normality.
When a solute is present in trace quantities the following expression is used:
The molarity of pure water is ____________.
5 ml of N HCl, 20 ml of N/2 H2SO4 and 30 ml of N/3 HNO3 are mixed together and volume made to one litre. The normality of the resulting solution is:
25 ml of a solution of barium hydroxide on titration with a 0.1 molar solution of hydrochloric acid gave a titre value of 35 ml. The molarity of barium hydroxide solution was ______.
Mole fraction of the solute in a 1.00 molal aqueous solution is ____________.
What is the normality of a 1 M solution of H3PO4?
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:
Which of the following units is useful in relating concentration of solution with its vapour pressure?
The number of moles of NaCl in 3 litres of 3 M solution is ____________.
What is the mole fraction of solute in 1.00 m aqueous solutions?
Given below are two statements labelled as Assertion (A) and Reason (R).
Assertion (A): Molarity of a solution changes with temperature.
Reason (R): Molarity is a colligative property.
Select the most appropriate answer from the options given below:
The de Broglie wavelength of a car of mass 1000 kg and velocity 36 km/hr is :
3.36 M sulphuric acid solution is 29% H2SO4 calculate the density of the solution.
Calculate the mass percent of benzene (CoH6) and carbon tetrachloride (ccl4) if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.
A 6.50 molal solution of KOH (aq.) has a density of 1.89 g cm−3. The molarity of the solution is ______ mol dm−3. (Round off to the Nearest Integer)
[Atomic masses: K: 39.0 u; O: 16.0 u; H: 1.0 u]
The mole fraction of a solute in a 100 molal aqueous solution is ______ × 10-2. (Round off to the Nearest Integer).
[Given :Atomic masses : H : 1.0 u, O : 16.0 u]
