How many total moles of ions are released when the following sample dissolves completely in water?.

A mole is described as 6.022 x 10²³ of any chemical unit, including atoms, molecules, ions, and others.
Because of the large number of atoms, compounds, or other constituents in any substance, the mole is indeed a convenient unit to use.

Each one mole of compound has Avogadro's number of molecules (6.022 x 10²³).

Find no. of moles of NiCl₂ by cross multiplication:

Let the number of moles be 'x'.

1.0 mol NiCl₂ → 6.022 x 10²³ molecules.

'x' mol NiCl₂ contains → 6.188 x 10²¹ molecules.

Thus, total moles of NiCl₂ = (1.0 mol)(6.188 x 10²¹ molecules)/(6.022 x 10²³ molecules)

Total moles of NiCl₂ = 1.028 x 10⁻² mol.

NiCl₂ is ionized as per the equation:

NiCl₂ → Ni²⁺ + 2Cl⁻.

That means 1.0 mol of NiCl₂ is ionized to form 3.0 moles (1.0 mol of Ni²⁺ and 2 moles of Cl⁻).

Thus, the total moles of ions that are released is 3.028 x 10⁻² mol.

To know more about the mole of the compound, here

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The complete question is-

How many total moles of ions are released when the following sample dissolves completely in water? 6.188 x 10 21 formula units of NiCl 2 a. 1.36 mol of ions b. 1.86 mol of ions c. 3.08 x 1022 mol of ions d. 0.0205 mol of ions e. 3.08 x 10-2 mol of ions