Please calculate the [H+] in the following solution at 298 K: a) 0.1 mol·dm-3 NaOH; b) 0.1 mol·dm-3 HCN ( 25ºC). (HCN is a monoprotic acid and Ka= 4.9×10^-10 at 25ºC.) c) A mixture of 0.1 mol·dm-3 CH3COOH and 0.1 mol·dm-3 CH3COONa at 25ºC. (CH3COOH is a monoprotic acid and its Ka=1.8×10^-5 at 25ºC.)
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Please calculate the [H+] in the following solution at 298 K:
a) 0.1 mol·dm-3 NaOH;
b) 0.1 mol·dm-3 HCN ( 25ºC). (HCN is a monoprotic acid and Ka= 4.9×10^-10 at 25ºC.)
c) A mixture of 0.1 mol·dm-3 CH3COOH and 0.1 mol·dm-3 CH3COONa at 25ºC.
(CH3COOH is a monoprotic acid and its Ka=1.8×10^-5 at 25ºC.)
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