What is the net ionic equation for the hydrolysis of Na2CO3
What is the expression for equilibrium constant?
What is the value?
3 Answers
Carbonate ion is derived from carbonic acid, the acid obtained when carbon dioxide gas is dissolved in water. This acid has two acidic protons, so that means there are two hydrolysis reactions: The equilibrium constants are Kb, which are the reciprocal of the corresponding Ka:
First hydrolysis:
CO3– + H2O → HCO3- + -OH
Kb = [HCO3-] [-OH] / [CO3–]
Kb = 1/Ka2 = 1 / (5.6×10^-11) = 1.8×10^10
Second Hydrolysis:
HCO3- + H2O → H2CO3 + -OH
Kb = [H2CO3] [-OH] / [HCO3-]
Kb = 1/Ka1 = 1 / (2.55×10^-4) = 4×10^3
Overall:
CO3– + 2H2O → H2CO3 + 2-OH
Kb = [H2CO3] [-OH]² / [CO3–].
Kb = 1/Ka1Ka2 = 7.1×10^13
This Site Might Help You.
RE:
Chemistry Help Needed for Hydrolysis of Na2CO3 PLEASE HELP ME!!!!!?
What is the net ionic equation for the hydrolysis of Na2CO3
What is the expression for equilibrium constant?
What is the value?
a. b. calcium c. inhibitor d. increase e. propagation f. negative g. explosive h. enzyme i. j. washing soda k. hydrogen? l. nitrogen oxides m. n. all of these o. greater