How much Na2SO4 solution (in L) must be added to initiate the precipitation of CaSO4?

Explanation:

Hello,

In this case, the rest of statement is missing, therefore, it was found to be:

We add 100 ml of 0.01 M Na₂SO₄-solution to 100 ml of 0.02 M CaCl₂-solution. A precipitate of CaSO₄ is formed. What is the (minimal) volume of 0.01 M Na₂SO₄-solution that needs to be added to the mix for the CaSO₄ precipitate to be just dissolved completely? Consider CaSO₄ solubility constant to be 2.5x10⁻⁵

In this case, Ca⁺², SO₄⁻² and H₂O are out interest substance, thus, if we introduce as the additional volume of Na₂SO₄-solution, we've got:

Hence, we have:

Replacing the previous values:

Solving for , we obtain:

Best regards.

fire could start, buildings collapsing, and ash falling from the sky.

explanation:

this is because the buildings or plants could catch on fire and the buildings would most likely collapse. lastly ash would fall because all the burning would cause ash to fall from the sky.

hope this .