OBSERVATIO 1A. To 2cm' of ammonium iron
Il sulphate, add slowly excess
dil. NaOH and note the result.
Do not discard​

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l

diaria maybe go see a doctor about that