Cyanide salts such as sodium cyanide are amoung the most rapidly acting of all known poisons and act by inhibiting respiration. a) Determine the pH...

Cyanide salts such as sodium cyanide are amoung the most rapidly acting of all known poisons and act by inhibiting respiration.

a) Determine the pH of a solution of 0.0054M sodium cyanide (assuming complete dissociation) and state whether sodium cyanide is an acidic, basic or neutral salt (Ka HCN = 4.9x10^-9)

b) If the current biological toxicity limit of cyanide for the average male is 8.9x10^-6M, is the solution described above toxic?