Chem 2 Lab Final

Front 1

kinetics

Back 1

is the study of reaction rates and of the mechanisms, or bond breaking and making processes

Front 2

rate equation

Back 2

shows the mathematical relationship between the individual reactant concentrations and the reaction rate.

Front 3

reaction order

Back 3

the relationship between increasing reactant concentrations and the reaction rate increasing or decreasing is expressed as an exponential term refers to what?

Front 4

rate constant

Back 4

is a proportionality constant that varies only when the reaction temperature changes.

Front 5

overall reaction order

Back 5

is the sum of the orders of the individual reactants.

Front 6

percent transmittance

Back 6

is the measure in percentage of light that passes through a given solution. When you have all light passing through solution, you have 100% when partial light is absorbed, you have less than 100%.

Front 7

analytical wavelength

Back 7

is the wavelength at which percent transmittance is lowest. this solution at the wavelength is most sensitive which is used for analysis.

Front 8

concentration of absorbing substance

path length of light through the solution

molar absorptivity

Back 8

what are three variables that influence specific responses of the solution, regarding spectrophotometric analysis?

Front 9

Beer's law

Back 9

the product of three variables used the calculate absorbance A is known as

Front 10

reference solution

Back 10

is used to compensate for interference when calculating absorbency. it contains all the components of the solution except the species being determined.

Front 11

cuvettes

Back 11

type of test tube used to analyze the absorbency of a solution.

Front 12

beers law plot

Back 12

a graph that is plotted and represents absorbence versus concentration.

Front 13

at equilibrium

Back 13

when there is no further change in the concentrations of either reactants or products we say the reaction is ............

Front 14

titration

Back 14

is the addition of a chemically equivalent volume of a solution of known concentration, called a standardized solution, to the solution of unknown concentration being analyzed.

Front 15

titrant

Back 15

the ........ is the standardized solution being added to our buret.

Front 16

strong

Back 16

in ........... acids, virtually every molecule dissociates, releasing a hydrogen ion to a water molecule, producing hydronium ion.

Front 17

equivalence point

Back 17

the neutralization of a reaction is complete at this point. meaning, the number of moles of your titrants equals the number of moles of your solution your analyzing.

Front 18

weak

Back 18

in ........ acids, only a small percent of acid molecules dissociate to produce hydronium ion.

Front 19

solubility product constant

Back 19

the equilibrium constant for solids dissolving in a solvent is termed the....

Front 20

reduction reaction

Back 20

chemical species gains the electrons lost by another chemical species in the oxidation process.

Front 21

oxidation reaction

Back 21

uncombined elements have lost electrons to form ions.

Front 22

spontaneous

Back 22

we say a redox reaction is ......... if the electron exchange occurs without outside influence.

Front 23

galvanic or voltaic

Back 23

when you physically separate out the half reactions , we can cause the electrongs to flow throughan external circuit. this system is known as a ............cell

Front 24

electrolytes

Back 24

are composed of solvated ions and can conduct an electric current.

Front 25

salt bridges

Back 25

contain a non interfering electrolyte.