Chemistry Homework Solutions
Problem
#121534

Calculating the amount of dissolved oxygen in water using Henry's Law

I am trying to calculate the amount of oxygen that will dissolve in regular water as a function of temperature in units of mg/L. So I guess I'm trying to find the equilibrium concentration vs. the saturation concentration.

First, I do not seem to be able to find Henry's Law Constants for other than 25 degrees C, and the problems I am trying to work on are at temps of 40 to 50 degrees C. Where can I find these?

I know this is an equation that incorporates both oxygen partial pressure and Henry's Law but I admittedly do not know the equation.

So....I am trying calculate the amount of oxygen that will dissolve in water at say 45 degrees C and at 50 degrees C.

My resultant dissolved oxygen I want in units of milligrams per liter.

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