Question

ick the "Submit button. The higher score of the two attempts will be posted on Canvas. There is no time limit for each attempt his assignment will ble closed on Friday. March 29th at 12:00 PM(noon!.The correct answers will be available on Friday, March 29 D Question 4 A 100 ml sample of 0.25 M HCN(ag) is titrated with a 100 mL of 0.25 M LiOH(aq). Select ALL main components (greater than 0.001 moles, besides H:O) that would be present in the solution after adding LiOH. K, of HCN is 4.9 x10-10 LiOH HCN CN Li HCN н,о. Previous Next

Answer 1

The reaction between HCN and LiOH occurs as

LiOH (aq) + HCN (aq) ----> LiCN (aq)+ H₂O (l)

This is an acid base reaction. HCN is a weak acid. The ionic equation is

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

and net ionic equation is

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

Thus the components that would be present in the solution after adding LiOH are Li⁺ , CN^- and H₂O.