At 25 °C with 10 g/kg of water vapor in the air, precipitation is likely or not likely.

Not likely

Explanation:

It would only be likely if the humidity was high enough to rain.

so, it is not likely

h let me think

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