Question

2 litres of an aqueous solotion is prepared containing initially 10^-3 moles of MgCl2 and 10^-3 moles of NaF. find the concentration of f^- ions in the solution at equillibrium

Answer 1

Answer:

Write chemical equations and equilibrium expressions representing solubility equilibria

Carry out equilibrium computations involving solubility, equilibrium expressions, and solute concentrations

The preservation of medical

Answer 2

Explanation:

According to given data, [Mg

+2

]=

2×10

−6

150

=75×10

−6

[F

−

]=

2×10

−5

250

=125×10

−5

[Mg

+2

][F

−

]

2

=11.7×10

−8

>K

sp

So MgF

2

will precipitate out and chloride will remain in solution.