ucb chem1a 18

"spectator ion" "di-protic" "salt doesn't react with anything"
"titration (計量。語源はtitle付け)" "reagent = reactant"
HCl ... strong(ly dissociated) acid 0.1MOLAR -> $-log(0.1)->$pH=1 0.01MOLAR $-log(0.01)->$pH=2