Please, Answer the following question 1. Imagine that saturated solutions of bar

Question

Please, Answer the following question

1. Imagine that saturated solutions of barium chloride (BaCl2) and potassium sulfate (K2SO4) are mixed. A white precipitate forms, and the solution is found to contain potassium chloride. (a) What is the name of the precipitate? (b) Write an equation for the reaction that occurred. (c) Which are the spectator ions in this reaction? 2. Consider the compound naphthalene. Based in the rule Like Dissolves Like, which should be a good solvent for naphthalene and why: benzene, water, acetone? (Hint: Use your textbook and/or other resources to help you identify the structure of the named compounds) 3. When mixing the ionic solution pairs, is the quantity of each solution added to the test tube important? Why or not? 4. Predict the water solubility of following compounds: RbCI, NH4NO3, PbS, BaSO4, AgBr 5. Define a homogenous solution

Explanation / Answer

1. a) BaSO4 is the precipitate.
b) BaCl2 + K2SO4 -----> BaSO4(s) + 2KCl
c) K+ and Cl- are the spectactor ions.

2. Based in the rule "Like dissolves like", benzene is a good solvent for naphthalene, because both benzene and naphthalene because of the non-polar nature are easier to dissolve. Water and acetone are polar solvents, hence they will not dissolve a non-polar molecule like naphthalene.

3. When mixing the ionic solution pairs, the quantity of each solution added to the test tube is not important, what is more impostant is their solubility product value. Higher the solubility product value higher is the possibility of the particular compound to form a solution in water. If the solubility product value is significantly less, then it will form a precipitate in the reaction mixture, even if the quantitiy of each solution addded is more.

4. Water solubility order of the given moecules are in the following order:
PbS < BaSO4 < AgBr < RbCl < NH4NO3

5. Homogenous solution is a solution in which both the reactants are in the same phase.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---