Term
|
Definition
| bonding of electronegative atom through hydrogen atom |
|
|
Term
Explain what happens when NaCl dissolves in water |
|
Definition
| attraction between sodium and chloride are displaced by new attractions between the sodium and the oxygen component of water and chloride is attracted to hydrogen component of water (called ion dipole interactions) |
|
|
Term
|
Definition
| solute that dissolves in water and forms ions |
|
|
Term
Response of lipid or any apolar molecule being dropped in water |
|
Definition
initially, lipid molecule will initially be surrounded by water molecules as water attempts to exclude it this will force water into a more ordered state, formin a "cage" around each molecule eventually, lipids are packed together, reducing the number of "cages" finally, they are squeezed out of the water and accumulate at the top or bottom of the solvent (depends on density)
|
|
|
Term
| Response of amphipathic molecules to water. Example of substances which apply this principle. |
|
Definition
spherical particle forms with the nonpolar side chains packed into center (hydrophobic bonds) polar parts cluster on surface hydrogen bonding with water example: soaps, detergents
|
|
|
Term
| Different types of colloidal solutions |
|
Definition
sols- solid disperse in liquid (ex: milk of magnesia) emulsions- liquid disperse in liquid (ex: homogenized milk) aerosol- solid/liquid is dispered in gas (ex: cigarette smoke) gel- solid arranged in fine network throughout a lipid (ex: gelatin)
|
|
|
Term
| Definition of colloidal solution |
|
Definition
| heterogenous solution due to size of solute particles |
|
|
Term
|
Definition
| effect of colloid solution being able to scatter photons of light |
|
|
