Problem: Fish need at least 4 ppm dissolved O2 for survival.What is this concentration in mol/L?

FREE Expert Solution

We’re being asked to determine the molarity of 4 ppm dissolved O2. Let’s first define ppm and ppb.


1 ppm means 1 part of solute for every 106 parts of the solution

in terms of solutions:

ppm=μg solutemL solution


1 ppb means 1 part of solute for every 109 parts of the solution

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Problem Details

Fish need at least 4 ppm dissolved O2 for survival.

What is this concentration in mol/L?

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