Solubility of lead iodide 2.0 x 10 moldm3 at 298 k.
Calculate it solubility product Constant.

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.

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

you need to stop taking that class