An 80.0-mL sample of concentrated sulfuric acid, H2SO4, is diluted to 1.5 L; a 25-mL sample of the dilute acid is further diluted to 125 mL. If the initial concentration of concentrated H2SO4 is 18 M, what is the concentration of H2SO4 after the second dilution?            (A) 0.19 M                                (B) 0.16 M                                 (C) 0.45 M                                 (D) 0.90 M

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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.