Answer to Question #180690 in General Chemistry for Nonetheless

Question

Procedures:

1. On a glass of water add a small amount of alcohol, observe its solubility in water, this is your first set-up.

2. On another glass of water add 1/2 teaspoon of salt, observe its solubility in water, this is your second set-up.

3. Get your 1 ruler sized strip of paper, put a glue on the entire strip on one face then fold the paper. Let the paper stick to make it half in size. This is your set-up 3.

4. Get another 1 ruler sized strip of paper, do the same procedure in number 3 but on this one use a baby powder after putting a glue and observe if they will stick together. This is your set-up 4.

Guide Questions:

a. How will you describe the forces of attraction between solid solute and liquid solvent?

b. How will you differentiate the results of set-up 3 and set-up 4?

c. Is there a difference in forces of interaction?

Answer 1

The strength of the intermolecular forces between solutes and solvents determines the solubility of a given solute in a given solvent. In order to form a solution, the solute must be surrounded, or solvated, by the solvent. Solutes successfully dissolve into solvents when solute-solvent bonds are stronger than either solute-solute bonds or solvent-solvent bonds.

In 4th step there is the use of baby powder so I will mark it with intial bp

Yes

That is Intramolecular forces are the forces that hold atoms together within a molecule.

Intermolecular forces are forces that exist between molecules.