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UNIT OF CONCENTRATION OF SOLUTION Basic terminologies Phase: Every sample of matter with uniform properties and a fixed composition is called a phase. Examples: Sample of water at room temperature and normal pressure exists as a single liquid phase that is all the properties of water sample are same throughout this liquid phase. Mixture of water and small amount of sugar is also the example of phase. However this phase has different properties as compared to pure water sample. But properties of this new phase i.e., water and sugar mixture remains same throughout the sample. Solution: A homogeneous mixture of two or more than two substances is called solution. There are two components of solutions. Solvent: The substance which is present in large quantity in solution is called solvent. Solute: The substance which is present in small quantity in solution is called solute. Example: In aqueous solution of sugar, water is solvent and sugar is solute. Binary ...