Titration, Buffers, Acids and Bases Flashcards
When titrating acid/base solution, how does adding an unk amount of h20 effect results?
It does NOT affect results. The amount of h20 does not affect how many equivalence of acid/base are present
What does Ksp mean? How is it related to strong and weak electrolytes within the body?
ksp= [products]=solubility of ionic compound in water
Higher the ksp, the more dissolvable. For strong electrolytes, they have large Ksp and can dissociate into the blood/system. Opposite is true for weak electrolytes.
You can think of Ksp as a special Keq and apply the same concepts.
What is the arrhenius definition of acids and bases?
An acid is a species that produces excess H+ (protons) in an aq. solution
A base is a species that produces excess OH- (hydroxide ions)
What is the Bronsted-Lowry definition of acids and bases?
An acid is a species that donates protons, while a base is a species that accepts protons
What is the Lewis definition of an acid and base?
An acid is an electron pair acceptor, and a base is an electron pair donor.
When asked to compare the acidity of molecules, what should you be looking for?
Stability of conjugate base!
Electron withdrawal stabilizes the conjugate base. Closer the atom is to the site of H+ loss, the more stable. Similarly, the more electronegativity, the more stable.
