pH arvutused Tugevad happed ja alused [H ] = C + M ( hape ) [OH ] = C- M ( alus ) I= 1 2 [ C1 z12 + C 2 z 22 + ... + C n z n2 ] ai = i C i C% 2 - 1 V ( L) C M M = V (mL) = 1 + ( I - I1 ) 100 I 2 - I1 a H + a OH - = K w = 1 10 -14 Nõrgad happed ja alused [H ] = C + M ( hape ) [OH ] = C - M ( alus ) a [H ] H+ + ...
pH hüdrolüüsuvate soolade lahustes K CH 3COOH = 1,75 10 -5 1. K NH 3 H 2O = 1,8 10 -5 Nõrga aluse ja nõrga happe sool K hape K v [H ] = + K alus = 1,75 10 -5 1,0 10 -14 1,8 10 -5 = 9,9 10 -8 M [ ] pH = -log( H + ) = -log(9,9 10 -8 ) = 7,0 = 1,0 2. K -5 CH COOH = 1,75 10 3 C% V ( L) C M M = V (mL) 100 V (mL) C % 1000 1,0 1,64 CM = = ...
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