A manufacturing facility produces a waste stream solution that contains solution that is 0.0125 M in...

A manufacturing facility produces a waste stream solution that contains solution that is 0.0125 M in barium ion. What is the minimum concentration of fluoride ion required to precipitate barium fluoride from the waste stream solution? Ksp (BaF2) = 1.7 x 10-6.

Expert Solution

We know solubility is the maximum amount that can be dissolved, hence solubility is also concentration.

We calculate at

Equal value of solubility product and solubility. And then slight lesser value of solubility that is concentration of fluoride ion, precipitation starts

For precipitation. Ksp > S

Concentration of fluoride ions = 0.582 M for the precipitation.

queen_honey_blossom answered 2 years ago

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