How many atoms are in a 121.4 gram sample of Aluminum (Al)? a
2.71 X 10 ^ 24 atoms
b
4.5 atoms
c
1.97 X 10 ^ 27 atoms
d
5.44 X 10 ^ -21 atoms

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