BCH 4033 lab 1- pH, pOH

exam 1 content

what does a low pH indicate?

a high concentration of hydrogen ions

what does pOH denote?

the negative log of the hydroxyl ion concentration

pH equations

pH + pOH = 14

pH = pKa + log 10 [conj.base] / [conj. acid]

pH = -log [H+]

[H+] = Ka [HA] \ [A-]

H+ = 10^-pH

pOH = -log [OH-]

OH- = 10^-pOH

what is a Bronsted-Lowry base?

a compound that accepts protons

weak or strong depending on the extent to which they ionize

what is a Bronsted-Lowry acid?

a compound that donates protons

weak or strong depending on the extent to which they ionize

what are strong acids?

acids that dissociate completely

their H+ is the same as the original concentration of the acids before ionization

pH is equal to the negative log of H+

what are strong bases?

bases that dissociate completely

concentration of OH- and the base are equal for monobases (ex.KOH)