Fermentation is needed for anaerobic glycolysis:. a. to convert lactate to pyruvate. only in anaerobic organisms.
b. in order to convert NADH back to NAD
c. so glycolysis can continue.
d. only in organisms that produce ethanol.

particle   p is an electron and particle q is a neutron

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

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