
Interpretation Empirical formula and molecular formula of the compound is to be determined.
Concept introduction:
Colligative properties: Properties of solutions which having influence on the concentration of the solute in it. Colligative properties are,
- Decrease in the vapor pressure
- Increase in the boiling point
- Decline in the freezing point
- Osmotic pressure
Osmotic pressure: The pressure created by the column of solution for the system at equilibrium is a measure of the osmotic pressure and is calculated by using the equation,
π = cRT
where,
c is the molar concentration
The number of moles of any substance can be determined using the equation
Number of mole =Given mass of the substanceMolar mass
Empirical formula: The simplest integer ratio of the element in a chemical formula. It can be obtained by reducing the ratio of elements to the simplest integer form of a molecular formula.

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Chapter 13 Solutions
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