Pdf colligative properties formulas

Substituting into the osmotic pressure equation thus gives. So guys download the solutions and its colligative properties daily practice problem dpp from below. Click to download solutions and colligative properties dpp pdf. The approximation in this expression is valid for dilute solutions. Colligative properties where x i is the mole fraction of polymer with molecular weight m i. This section introduces a third category that is a subset of the. For example, 1 mole of any nonelectrolyte dissolved in 1 kilogram of solvent produces the same lowering of the freezing point as does 1 mole of any other. Consider the equilibrium represented by equation 2.

Colligative properties equations and formulas examples. For example, alcl 3 and k 3 po 4 would exhibit essentially the same colligative properties, since each compound dissolves to produce four ions per formula unit. Colligative properties definition, types, examples. Solutions and colligative properties dpp pdf for iitjee. Physical properties can be divided into two categories. These colligative properties include vapor pressure lowering, boiling point. The properties of solutions that depend only on the. Since colligative properties depend on the ratio of solvent to solute molecules. Colligative properties chemistry encyclopedia water, uses. Generally, the solvent properties are changed by the solute where its particles remove some of the solvent molecules in the liquid phase. Any of the colligative properties vapor pressure, freezing point, boiling point or osmotic pressure can be used to determine the molar mass of nonvolatile molecular substances.

Extensive properties such as mass and volume depend on the size of the sample. Colligative properties chemistry, class 12, solutions. Write the totalionic and netionic equations for the above reaction. A lecture on colligative properties in an undergraduate. Colligative properties by definition a colligative property is a solution property a property of mixtures for which it is the amount of solute dissolved in the solvent matters but the kind of solute does not matter.

These properties are mostly seen in dilute solutions. Colligative properties of electrolytes as noted previously in this module, the colligative properties of a solution depend only on the number, not on the kind, of solute species dissolved. The properties of the solutions which depend only on the number of solute particles but not on the nature of the solute are called colligative properties. Intensive properties such as density and concentration are characteristic properties of the substance. The final discussion will be the effect of association and dissociation of particles on colligative properties.

Colligative properties general chemistry, boston university. Colligative properties, ch102 general chemistry, spring 2014, boston university. We will also learn the formulas for ebullioscopic constant and cryoscopic constant. Raoults law, colligative properties, osmosis 97 colligative properties consider volatile solvent. Inclusion of vant hoff factor modified the equations for colligative properties as. Give the molecular formula, the vant hoff factor for the following ionic compounds as well as guess the solubility of the compounds. Use the equation relating freezing point depression to solute molality to solve this. According to raoults law for a solution of volatile liquids the partial vapour pressure of each component in the. We more conveniently rewrite x i in terms of concentration. From the above equation one can calculate the concen tration of the solute in a solution by measuring the boiling point elevation and knowing the kb. We can further consider colligative properties as those properties that are obtained by the dissolution of a nonvolatile solute in a volatile solvent.