The mass per unit volume is substance is called

The mass per volume of a substance is called its density.

The mass per unit volume is substance called density.

Hope this helps

Have a great night

God bless you

- Kayla :)

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