How many moles of C6H12O6, are in a 321.9 g sample? Select one:
a. 1.8 moles
b. 1.1 moles
c. 0.25 moles
d. 3.4 moles

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

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