18. The substance triethanolamine is a weak nitrogenous base like ammonia. Write

Question

18. The substance triethanolamine is a weak nitrogenous base like ammonia.
Write a net ionic equation to show how triethanolamine, C6H15O3N, behaves as a base in water.

19. Write a net ionic equation for the reaction that occurs when aqueous solutions of  barium hydroxideand  nitric acid are combined. (Use H+ instead of H3O+.)

20. Write a net ionic equation for the reaction that occurs when aqueous solutions of hydrocyanic acid andpotassium hydroxide are combined.

21. Write a net ionic equation for the reaction that occurs when aqueous solutions of ammoniaandhypochlorous acid are combined.

Explanation / Answer

18)

net ionic equation :

C6H15O3N (aq) + H2O (l) ---------------> C6H15O3NH+ (aq)   + OH- (aq)

19)

balanced equation :

Ba(OH)2 + 2 HNO3   -----------> Ba(NO3)2 + 2 H2O

net ionic equation :

2 H+ (aq) + 2 OH- (aq)   ---------------> 2 H2O (l)

20)

net ionic equation :

HCN (aq) + OH- (aq) -------------> CN- (aq) + H2O (l)

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