B) if a reaction starts with 700 of stibnite. 700 sodium
carbonate and 150 g of carbon, what would be the percent yield of
antimony if the actual yield is 495.g?

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