Analytical Exam Two

What is the acid/base/c.acid/c. base of H2S04 + H2O

acid: H2SO4, base: H2O, c. acid: H3O+, c. base: HSO4-

What is Kw

Kw = [H3O+] + [OH-] = 1.00 × 10^-14

What are the six strong acids

HCl, HBr, HI, H2SO4, HNO3, HClO4

a weak acid with a higher Ka and smaller pKa compared to another weak acid is considered

the stronger weak acid

when pH > pKa

[A-] > [HA]

what are the strong bases

LiOH, NaOH, KOH, RbOH, CsOH, T1OH, Ca(OH)2, Sr(OH)2, Ba(OH)2

what typically acts as weak acids

carboxylic acids, ammonium ions, and metal ions of 3+ or more charge

what typically acts as weak bases

amines, carboxylate ions, anions of weak acids

a larger Kb and a smaller pKb indicate

a stronger base

Ka * Kb =

Kw

what is the ionic strength equation

u = ½ (c1z1² + c2z2² + …)

what is activity

the adjusted concentration of a solution to account for the ionic strength of the solution

activity coefficient equation

log g = -0.51z² * sqrt(u)/1+(a * sqrt(u)/305)