Discussion OF Group B units- % by weight/Mole Fraction/Molality

Discussion OF Group A units - % by volume/% wt by volume/Strength/Molarity

Normality, Formality|| Percentage by Weight||Mole Fraction||Molality

What are the units of mole fraction ?

Define the following terms : a. Mole fraction b. Molality c. Molarity d. Mass percentage.

If ratio of mole fraction of solute to solvent is unity, what would be % by weight? (concentration of solute) )M solute=M molecular mass of solvent)

Calculation of Molality and Mole Fraction using percentage by weight and Relation between Molarity, density & percentage by weight and Concept of Dilution and Sampling

The concentrations of soluitons can be expressed in number of ways , viz : mass fraction of solute (or mass percent), Molar concentration (Molarity ) and Molal concentration (molality). These terms are known as concentration terms and also they are related with each otehr i.e., knowing one concentration terms for the solution, we can find other concentration terms also. the definition of different cencentration terms are given below: Molarity : It is number of moles of solute present in one litre of the solution. Molality : It is the number of moles of solute present in one kg of the solvent. Mole fraction =("Mole of solute")/("Moles of solute" + "Moles of solvent") If molality of the solution is given as a, then mole fraction of the solute can be calculated by Mole Fraction =(a)/(a+(100)/(M_("solvent"))),=(axxM_("solvent"))/((a xx M_("solvent")+1000)0 where a=molality and M_("solvent") =Molar mass of solvent We can change : Mole fraction hArr Molality hArr Molarity Percentage (weight/vol) of NaCl persent in the solution is :

Mole Fraction|Molarity|Molality|OMR|Summary

How many of the following are dilution independent in case of solution. Meq. of solute, mole of solute, % by mass, mole fraction, molarity, molality, % by strength, strength, normality.