(19 points) Calculate the equilibrium concentration of dissolved oxygen in 15C water at 1atm and again at 2,000m elevation.

1.(19 points) Calculate the equilibrium concentration of dissolved oxygen in 15ºC water at 1atm and again at 2,000m elevation.2. (30 points) Calculate the pH of a soft drink an aqueous CO2 concentration=0.066667 mol/L. The solution will be somehow acidic.3.(21 points) Find the theoretical oxygen demand for the following solutions:a)250 mg/L acetic acidb)100 mg/L ethanolc)50 mg/L sucrose4. (30 points) Fill in the water use excel spreadsheet and comment. How is your water usage compared to reported averages? Where you aware of the amount of water you use? What can you do to improve your water consumption?

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