-58 °C
The melting point is the same as the freezing point.
Answer:
Barium carbonate powder is stirred add pulp in the entry, the vitriol that the adds solubility then reaction that makes the transition is filtered and is obtained the barium sulfate filter cake and liquid after the transition.
So your answer would pretty much be 2.80 x 10^24. The picture is just the explanation and how you would get that answer.