State a gas mixture containing carbon dioxide

Reference no: EM13193804

Four liters of water are equilibrated with a gas mixture containing carbon dioxide at a partial pressure of .3 atm. Henry's law constant for H2CO3* solubility is 2.0 g/L-atm.

a. How many grams of Co2 are dissolved in the water? What is the pH of this water? (Neglect the secondary dissociation of carbonic acid.)

b. Assume that H2CO3* dissolves first without dissociating, achieving equilibrium with the atmosphere, and then the solution is closed to the atmosphere. H2CO3* then dissociates (neglect the secondary dissociation). Find the PH of this solution and compare it to the result obtained in (a).

Reference no: EM13193804

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