Solutions and Dilutions Flashcards
Diffusion
Movement of molecules from HIGH to LOW concentration
Osmosis
Movement of water from LOW to HIGH concentration
Henry’s Law
Dissolved gas in a liquid is proportional to partial pressure of the gas
Hypotonic Solution
Lower osmolarity than the cytoplasm
Hypertonic Solution
Greater osmolarity than the cytoplasm
Isotonic Solution
Same osmolarity as the cytoplasm
Osmolarity
Total molar concentration of all solutes
Osmotic Pressure
Pressure needed to stop the flow of solvent across the membrane
Saturated Solution
Max amount of solute that can be dissolved at a temperature
Supersaturated Solution
More particles than could be dissolved by solvent
Serial Dilution
Regular increments of dilutions that are less concentrated than the last
Solute
Component of solution less than the solvent
Solution
Homogeneous mixture composed of one or more solutes
Solvent
Component of solution that is the largest quantity
Tonicity
The ability to make water move in or out of the cell
What are 4 properties of a liquid solution?
Clear
Colorless
Solute & solvent not additive
Electrical charge
True Solution
homogeneous, uniform throughout
Colloid Suspension
Solute particles distributed throughout the solvent
Tyndall Effect
Suspension
Heterogenous mixture with large particles
Polarity
“Like dissolves like”
What increases solubility?
Temperature
Degree of solubility
How much can dissolve in a given volume