It's my law and I approve of this question!!!!   

If the pH of a bottle of mineral water is 5.50, what is the pressure of CO₂ in the bottle above the liquid?

1st completed work with correct answer turned in to Mr. Kortemeier will be worth 50 pts of extra credit

Hints: This problem combines

            Henry's Law

            weak acid equilibrium

            and of course pH!!!

To those of you who seek out extra work and mental adventures....Good Luck and Thank You.