Posted by ALISON on Thursday, March 1, 2012 at 4:21pm.
The pH of salts is determined by the hydrolysis of the salt. In the case of NH4Cl, the NH4^+ is hydrolyzed because it is a stronger acid than H2O (the NH4^+ donates a H^+ to H2O).
.........NH4^+ + H2O ==> H3O^+ + NH3
.........0.1...............0......0
change....-x...............x......x
equil....0.1-x.............x......x
Ka for NH4^+ = (Kw/Kb for NH3) = (H3O^+)(NH3)/(NH4+)
Substitute from the ICE chart and solve for x which is H3O^+, and convert that to pH.
Related Questions
ap chemistry - for the following, mix the equal volumes of one solution from ...
chem - Can someone please help me by explaining and correcting me? 1) A 0.057M ...
Chemistry PLEASE HELP!!! - 'A buffer is prepared by mixing a 100.omL of a 0....
chemistry - Will this solution form a buffer? 100 mL of .10 M NH3; 100 mL of .15...
Chemistry - Hi, i'm really desperate! could anyone please help me with this ...
Chemistry - A 100 milliliter sample of 0.100-molar NH4Cl solution was added to ...
Chemistry - A 100 milliliter sample of 0.100-molar NH4Cl solution was added to ...
Chemistry - If one were to mix 200.0 mL of an HCl solution that had a pH of 3.00...
Help Chemistry - Can you please tell me if these are right? Determine the pH for...
chemistry - What is the pH of a 0.250 M NH4Cl solution? Kb for NH3 = 1.8 ×...
For Further Reading
