Avessel contains a mixture of gases. the mass of each gas used to make the mixture is known. which of the following information is needed to determine the mole fraction of each gas in the mixture?

No options provided, but the partial pressure exerted by each gas molecules are added up, to determine the mass

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