A student makes a model of a mineral crystal. The scale is 1:24. The crystal in the model is 5 cm long.
How long is the real-life crystal?
A. 4.8 cm
B. 0.96 cm
C. 120 cm
O D. 29 cm

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

the objects have the same charge.