### 41 terms by peoneill Teacher

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### Van't Hoff Factor

In colligative properties calculations this variable corrects for ionic dissociation

### Precipitation

The formation of a solid in a solution

### Solution

A homogeneous mixture composed of two or more substances

### Spectrophotometer

Used to measure the light absorbance of solutions

### Vapor Pressure

The pressure at which a gas will be dissolving back into solution at the same rate it is evaporating

### Flaccid

The condition of a plant cell in an isotonic solution

### Hypotonic

A solution with a much LOWER concentration than that of a solution within a semi-permeable membrane (such as a cell)

### Osmometer

Used to measure the osmotic pressure of a solution

### Normality

Reaction equivalents/L solution

### Turgid

The condition of a plant cell in a hypotonic solution

### Henry's Law

The solubility of a gas in a liquid at a particular temperature is proportional to the partial pressure of that gas above the liquid

### Osmosis

The movement of water across a semi-permeable membrane from an area of high water potential (low concentration of dissolved substances) to an area of low water potential (high conc

### Osmotic Pressure

The pressure that must be applied to a solution to prevent the inward flow of water across a semipermeable membrane

### Shriveled

The condition of an animal cell in a hypertonic solution

### Ebullioscope

Used to measure the boiling point of solutions

### Miscible

Two substances that form a solution when mixed in any proportion

### Isotonic

A solution with the SAME concentration on both sides of a semi-permeable membrane

### Heat of Hydration

Describes the change in enthalpy when a compound is dissolved in water

### Plasmolyzed

The condition of a plant cell in a hypertonic solution

Mass per volume

### Boiling Point Elevation

Delta T = molality x ebullioscopic constant x van't hoff factor

### Mole Fraction

mol solute/sum of all mol in solution

### Evaporation

The process by which molecules in a liquid state or solid state spontaneously become gaseous

### Colligative Properties

Properties of solutions that depend on the number of molecules in a given volume of solvent and not on the properties (e.g. size or mass) of the molecules

### Dissolution

The rate at which one substance is solvated by another

### Hypertonic

A solution with a much HIGHER concentration than that of a solution within a semi-permeable membrane (such as a cell)

### Tyndall Effect

The scattering of light particles caused by colloids that tends to reflect blue better than other colors

### Solute

A substance dissolved into a solution

### Dilute

To add more solvent or reduce the amount of solute

### Raoult's Law

Describes the effect on vapor pressure when increasing the concentration of a solution

### Colloid

Particles of a dispersed substance are only suspended in a mixture, NOT completely dissolved

### Supersaturated

A solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances

### Freezing Point Depression

Describes the effect on freezing point of a solution with increasing concentration

### Molality

mol solute/kg solvent

### Solubility

Describes the equilibrium point at which rate of dissolution is equal to rate of precipitation (usually in mol/kg)

### Concentration

How much of a given substance there is mixed with another substance, often referring to a solvent in a solute

### Saturation

A concentration at which no further solute will dissolve in a solution

### Solvent

The medium of a solution into which other substances are dissolved

### Lysed

The condition of an animal cell in a hypotonic solution

### Beer's Law

The amount of light absorbed by a substance at a given wavelength is directly proportional to its concentration in a solution.

### Molarity

mol solute/L solution

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