Exam 2

Question 1

what is the percent yield

Answer 1

(experimental/theoretical)*100%

Question 2

where something in solution, comes out of solutions, or becomes insoluble and precipitates out of the solution)

Answer 2

precipitation reaction

Question 3

these are electrochemical reactions, the formation of ions, or the transference of electrons).

Answer 3

redox reactions

Question 4

what are the three main reactions that happen in an aqueous solution

Answer 4

precipitation, redox, and acid base

Question 5

what does a solution consist of

Answer 5

solute and solvent

Question 6

The amount of solute that can be dissolved in solvent

Answer 6

solubility

Question 7

substance that is dissolved in the solvent.

Answer 7

solute

Question 8

If a substance is dissolved into water, and the solution formed by the water and the substance conducted electricity, then the substance would be classified as

Answer 8

electrolyte

Question 9

don’t flow through aqueous solutions.

Answer 9

free electrons

Question 10

Compounds which have either an excess of electrons or a deficiency of electrons.

Answer 10

ions

Question 11

compounds which are fully, or almost fully ionized in solution.

Answer 11

strong electrolytes

Question 12

molecular substances which dissolve in aqueous solution

Answer 12

weak electrolytes

Question 13

refers to how many ions a substance will produce in solution

Answer 13

strong or weak electrolyte

Question 14

refers to how much of the substance will dissolve in solution

Answer 14

solubility

Question 15

any substance which acts as a proton acceptor.

Answer 15

base

Question 16

Any substance which acts as a proton donor

Answer 16

acid

Question 17

what are the strong acids

Answer 17

Hydrochloric, Hydrobromic, Hydroiodic, Nitric, Sulfuric, Chloric and Perchloric acids.

Question 18

list of metals and their half-reactions arranged in order of decreasing ease of oxidation or increasing ability to take an electron.

Answer 18

activity series

Question 19

what is molarity

Answer 19

M=#of moles/# of L of solution

Question 20

process whereby the concentration of a solution is lessened by the addition of solvent

Answer 20

dilution

Question 21

process in which one solution of well known concentration is added to another solution of un-known concentration

Answer 21

titration

Question 22

what are titrations most commonly associated with

Answer 22

acid base reactions

Question 23

The chemical of unknown concentration

Answer 23

analyte

Question 24

solution of known concentration

Answer 24

titrant

Question 25

The study of the flow of energy

Answer 25

thermodynamics

Question 26

That portion of the universe that we are studying.

Answer 26

system

Question 27

what does 1 cal equal

Answer 27

4.184 J

Question 28

Everything else in the universe that is not the system

Answer 28

surroundings

Question 29

a system where there is no exchange of matter with the surroundings, only energy.

Answer 29

closed system

Question 30

the energy need to move an object against a force

Answer 30

work

Question 31

formal definition of work

Answer 31

w=fxd

Question 32

capacity to do work or transfer heat

Answer 32

energy

Question 33

The energy that flows into or out of a system due to a difference in temperature.

Answer 33

heat

Question 34

what is the first law of thermodynamics

Answer 34

E(internal energy)=q(heat) + w(work)

Question 35

what is internal energy

Answer 35

a state function

Question 36

The amount of heat required to raise the temperature of a body, 1.00 Kelvin.

Answer 36

heat capacity

Question 37

The amount of heat necessary to raise the temperature of one mole of a substance 1.00 Kelvin.

Answer 37

molar heat capacity

Question 38

The amount of heat needed to raise the temperature of 1.00 g of the substance 1.00 Kelvin.

Answer 38

specific gravity

Question 39

regardless of the multiple stages or steps of a reaction, the total enthalpy change for the reaction is the sum of all changes.

Answer 39

Hess’ Law