Use the following information to answer question 6. Rainbow Lake is at an elevation where the air pressure is 670 torr, and the current water temperature is 20oC. A particular fish species requires a minimum dissolved oxygen concentration of about 8.5 mg/L in order to live. Note: The Henry’s Law constant for O2 at 20oC is 1.38×10-3 M/atm. Question 6 What is the dissolved oxygen concentration, in mg/L, under the existing conditions at Rainbow Lake? ___ mg/L

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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.