Question

Identifying the major species in weak acid or weak base equilib... The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the bases row, and the formulas of the species that will act as neither acids nor bases in the other row. You will find it useful to keep in mind that HCN is a weak acid. O acids: 0 C D 0.6 mol of KOH is added to 1.0 L of a 0,3 M HCN solution. other: 0 acids: 0 0.13 mol of HNO3 is added to 1.0 L of a solution that is 1.1 M in both HCN and NaCN bases: 0 other: 0

Answer 1

Chemical reaction of both the question is written and concentrations of the rxn at ionic and equilibrium state is given from which acids, bases and other(metal) are found.

added to 1.0L of a 0.3MHCN soln. F 1.0.6 mol of kor is Answer: HCN At (i)=> 0.3 + KOH 0.6 H2O + KCN 0 0 (unreacted) 0.3 0.3. HON has consumed 0.3 molecules of KOH which results in 0.3mol of KCN 20.3 mol of H₂O and 0.3 mol of KOH (unreacted). Here, Acids Bases Others - Nil - KOH , CN- - k* 2.0.13 mol of HNO3 is soln that is him added to col of a in both HEN 4 Naen. Answer: - HNO3 + NaCN Atci) 0.13 1.im At el o 0.95M NaNO3 + HCN o o 013 013 Here Acids - HEN Bares - Noz , CNN others - Nat