Given the balanced equation representing a reaction:
4nh3 + 5o2 ==> 4no + 6h2o
what is the minimum number of moles of o2 that are needed to completely react with 16 moles of nh3?
(1) 16 mol (3) 64 mol
(2) 20. mol (4) 80. mol

20moles

Explanation:Please see attachment for explanation

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