A solid precipitate is formed from the reaction of lead nitrate and sodium chromate. What would be the best method to separate this solid from the solution?
The correct answer is this one: "C. Filtration." For distillation and evaporation, it would leave the soluble salt behind as well. Filtration refers to the action or process of filtering something.
Here are the choices:
A. Distillation
B. evaporation
C. Filtration
D. Sorting
Explanation:
A precipitate is an insoluble solid that does not dissolve in a chemical reaction or or mixture.
For example, \(Pb(NO_{3})_{2} + Na_{2}CrO_{4} \rightarrow PbCrO_{4} + 2NaNO_{3}\)
Therefore, the precipitate formed can be separated out by filtration method.
As this method will most suitably extract the precipitate and separate it from the remaining solution.