If you bubble pure H2S gas into a beaker of water, what is the concentration of HS- if the pH is controlled and remains at 5.
The Henry’s Law constant for 
is 0.1 mole/L-atm, and 
a. moles/L
b. mg/L
What will be an ideal response?
a. moles/L
Step 1: Use Henry’s Law to find the total dissolved sulfur species pure gas.
Step 2: Use equilibrium constant
b. mg/L, and
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