Consider the equilibrium between CO 2 and water in a container: How much carboni
ID: 931715 • Letter: C
Question
Consider the equilibrium between CO2 and water in a container:
How much carbonic acid will be produced in the reaction with water? What do you need to calculate its concentration? Do you need to know volumes of gas/liquid and what approximations need to be made?
What do you need to calculate pH of this solution? In what circumstances dissociation will affect [CO2 (aq)] and [H2CO3] and in what circumstances it will not?
What will happen if solution initially contained 1mM NaOH? Can you calculate final pH in this case?
What will change if solution contained 100 mM NaCl in addition to NaOH?
Explanation / Answer
1) balance 1: 1: 1 ... because: CO2 + H2O> H2CO3
2) moles of the reaction and makes weight as well as their respective volumes.
3) density and mass
4) the Ka and concentrations of reactants and based espejes apply the general formula of a quadratic equation of the form: Ax2 + Bx + C = 0
5) The power requirement affecting the steam to release CO2 dissociation as it will become endothermic to exothermic.
6) It will be more alkaline pH and can be calculated with the form pkb and calculate through its pOH
7) a change in osmotic pressure