Which statement below is true of a real gas? the size of molecules is significant, Molecules do interact, Energy is lost when the molecules interact, a ideal gas forms heterogeneous mixtures with other ideal gas

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