Chapter 20 Key Concepts Flashcards
1
Q
what does the hydronium ion
A
active acid ingredient in any aq acid
2
Q
monoprotic, monobasic
A
number of H ions in the acid that can be replaced per mole molecule in an acid base titration.
3
Q
approximations
A
H+ at equil is equal to A- at equilibrium. v. small dissociation from H+
HA at equalibrium is equal to HA at start as disociation of week acid is small so youcan neglet any decrease in con of HS from disscociation .
4
Q
how to work out Ka expermentally
A
prepare stand solution of weak acid of know concentration
measuring the H of the standard solution using of a pH measurement
