The equation for dilution of a solution is   ?1?1=?2?2M1⁢V1=M2⁢V2   where ?1M1 and ?1V1 are the initial concentration and volume, respectively, and ?2M2 and ?2V2 represent the final concentration and volume, respectively. When preparing a dilute solution, it is necessary to first calculate the volume of stock solution needed. Which of the expressions is equal to the volume of stock solution, ?1?V1? ?2?2?1M2⁢V2M1 ?1?2?2M1⁢M2V2 ?2?1?1

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.