CHEM 1110 Lecture Notes - Lecture 13: Reagent

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One ph unit: 10 difference factor because logarithmic. Very negative: very acidic, larger than 14: alkaline. [oh-] concentration is necessary to find poh. Neutralization goes past equil to remove limiting reagent. Remaining h30+ or oh-: initial conditions to find final equil. Finding ph of a strong acid concentration of h30+ Two sources of h30+ in aq solution of strong acid. Strong acid: contribution of water to total h30+: negligible. Shifts kw equil to left so far that h30+ from water is so small. 1 m hcl has [h30+]=. 1 m and ph=1. Polyprotic: other ionizations can often be ignored.