there are three isotopes of the fictional element smellium. 54.5% of pu has an atomic mass of 165.99 amu. 38.3% of Pu has an atomic mass of 168.22 amu. The remaining 7.2% if Pu has an atomic mass of 172.89 amu. What is the average atomic mass of smellium

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