QUESTIONS An aqueous solution of a dibasic acid (molecular mass is 118) containing 70.8 grams of the acid per liter
of the solution has a density 1.0077 grams per liter. Calculate its molarity.
A: O 0.4M
B: 0.5 M
C: 0.3 M
D: 0.6M

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explanation:

the answer is c.the valence of the atoms combine .

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