Stuff

Question 1

Solubility

Answer 1

How well a solute can dissolve into a solvent at a specific temperature. Increase in solubility matches with an increase in temperature. And how well they dissolve.

Question 2

Something that makes something hydrophobic

Answer 2

Polar covalent bonds

Question 3

Explain physics behind refractometer

Answer 3

Amount of solutes refract the light and it is then measured

Question 4

Difference between suspension and colloid

Answer 4

Colloids too large to dissolve, too small to come out. Suspension large particles will come out

Question 5

How to stabilize a colloid

Answer 5

Electrostatic or mechanical and emulsifiers.

Question 6

How many times more protons are there in a solution of pH5 compared with a solution of pH7?

Answer 6

100x

Question 7

Nucleation site

Answer 7

Solids are going to form, this is where phase change occurs (when it’s sugars, these solids are called crystals).

Question 8

Define a buffer as it relates to pH

Answer 8

Buffers resist change in pH/prevent them from occurring.

Question 9

What is pectin?

Answer 9

It is a carbohydrate, found in the cell walls in a cell, it is the cement that holds cellulose together in the cell walls. A calcium salt needs to be added to form a gel because this is necessary in the formation of ionic bridges.