Calculate the molar solubility of copper(ii) arsenate (cu3(aso4)2) in water. use 7.6 x 10^-36 as the solubility product constant of cu3(aso4)2.
9.1 x 10^-4 m
3.4 x 10^-2 m
3.7 x 10^-8 m
8.7 x 10^-2 m

The correct answer is option C.

Explanation:

                                     3S       2S

The solubility product of the will be given by:

The molar solubility of copper(II) arsenate (Cu3(AsO4)2) in water is .

Hence ,the correct answer is option C.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

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