Please solve and show accurate answers! 1) Which of the following statements abo

ID: 564626 • Letter: P

Question

Please solve and show accurate answers!

1) Which of the following statements about osmosis and reverse osmosis are correct?

e) Reverse osmosis produces energy

2) Which of the following is a colligative property?

e) Freezing point elevation

3) Which of the following definitions is correct?

e) Miscible – two liquids that will not dissolve in each other

4) Consider the energy involved in making a solution:

Hsolution = Hsolute + Hsolvent + Hmix

Which of the following statement(s) is correct?

e) Generally, if Hsolution is negative then the solute is soluble

5) Assuming that it completely dissociates in solution, what is the Van’t Hoff factor for Na3PO4?

a) Osmotic pressure occurs when you mix water and oil

1.b) Reverse osmosis produces pure solutions.

solvent from solution flows through the membrane in reverse direction into solvent.

2. d) Freezing point depression>>>answer

Coligative properties are lowering vapor pressure, osmotic pressure, elevation of boiling point, depression freezing point.

3. c) Saturated Solution – A solution has the maximum amount of dissolved solute

4. Hsolution = Hsolute + Hsolvent + Hmix

( edothermic) endothermic exothermic

e) Generally, if Hsolution is negative then the solute is soluble

5. N3PO4 ---------------> 3Na^+(aq) + PO4^3-

four ions

b)4