QUESTION 6 At 298 K, the Henry's law constant for oxygen is 0.0013 M/atm. Air is 21% oxygen. At 298 K, what is the solubility of oxygen in water exposed to air at 3.06 atm? Enter the answer in scientific (exponential) notation to 2 significant figures e.g. 1.2e-6. QUESTION 7 Which of the following expressions is the correct equilibrium-constant expression for the reaction below? H+ (aq) + HCO3- (aq) CO2 (g) + H20 (1) OA [H+][HCO3-]/[CO2] OB. [CO2]/[H+][HCO3-] OC. [H+][HCO3-]/[CO2][H2O] OD. [CO2][H2O]/[H+][HCO3-] OE [H+][HCO3-1/P(CO2)

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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.