Chemistry Unit 6

studied byStudied by 23 people
5.0(1)
get a hint
hint

A Solution

1 / 41

Tags and Description

Solubilit, Concentration, pH/pOH, Colligative Properties, Acids, Bases, Neutralization, and Equilibrium.

42 Terms

1

A Solution

A homogeneous mixture of one or more solutes dissolved in a solvent.

New cards
2

Homogeneous Mixture

A mixture in which the composition IS uniform throughout the mixture

New cards
3

Heterogeneous Mixture

A mixture in which the composition is NOT uniform throughout the mixture

New cards
4

Three things that will help solutions/reactions form

Agitation, Temperature, Size of particles of the solute

New cards
5

Solute

The substance that dissolves in a solvent to produce a homogeneous mixture.

New cards
6

Solvent

The substance in which a solute dissolves to produce a homogeneous mixture.

New cards
7

Solubility

The amount of solute that can be dissolved in an given amount of solvent at a set temperature and pressure

New cards
8

when the max amount of solute has been reached

Saturated

New cards
9

Density

The mass of a substance per unit of volume

New cards
10

Supersaturated solution

A solution that contains more dissolved solute than required for preparing a saturated solution

New cards
11

Concentration of a solute

A measure of the amount of solute that is dissolved in a given quantity of solvent

New cards
12

Concentration = ?

Molarity

New cards
13

Dilution

Lowering the concentration of the solute by adding more solvet (usally H20)

New cards
14

Colligitave Properties

Vapor-Pressure Lowering, Freezing-Point Depression, & Boiling-Point Elevation

New cards
15

Vapor-Pressure

The pressure created by gas that is at equilibrium with its gas

New cards
16

Vapor-Pressure Lowering

Adding solute lowers the number of gas particles made by \n a liquid solution.

New cards
17

Freezing-Point Depression

Adding solute blocks solvent particles from gathering \n together and forming a solid.

New cards
18

Freezing Point

the temperature at which a substance changes to a sold

New cards
19

Boiling-Point Elevation

Adding solute holds particles together with more force, \n making it harder for individual particles to escape into the gas \n phase.

New cards
20

Boiling Point

the temperature at which a liquid turns into a gas

New cards
21

Molality

A measure of solute concentration in a solution (used for colligative property calculations)

New cards
22

Mole Fraction

The ratio of the # of moles in a solution to the total # of moles in both the solvent & solute

New cards
23

Acid

pH =1 - 6.9

New cards
24

Base

pH = 7.1 - 14

New cards
25

Arrhenius acids/bases

Acids produce H+ & Bases produce OH-

New cards
26

Bronsted-Lowry acids/bases (primary model we use)

Acids donate protons (H+) & Bases accept protons (H+)

New cards
27

Lewis acids/bases

Acids accept a pair of electrons & Bases donate a pair of electrons

New cards
28

Equation for pH

pH = -log[H+]

New cards
29

Equation for pOH

pOH = -log[OH-]

New cards
30

What does pH+pOH equal?

14

New cards
31

Equation for [H+]

[H+] = 10^-pH

New cards
32

Equation for [OH-]

[OH-] = 10^-pOH

New cards
33

Neutralization reactions

Whem a strong acid and a strong base react

New cards
34

What does a Neutralization reaction contain?

Water and a salt (such as NaCl or KCl)

New cards
35

Titration

A technique where a solution of known concentration is used to determine the concentration of an unknown solution.

New cards
36

What is the goal of titration

To find the Equivalence Point

New cards
37

Equivalence Point

point in titration at which the amount of titrant added is just enough to completely neutralize the solution

New cards
38

Half Equivalence Point

the point at which exactly half of the acid in the buffer solution has reacted with the titrant. ( [HA-]=[A-] )

New cards
39

Buffer Region

A region where the pH of a solution remains constant

New cards
40

Le Chatelier’s Principle

If you mess with a system, it will automatically try to move back to equilibrium

New cards
41

Chemical Equilibrium

A state in which the rate of the forward reaction equals the rate of the backward reaction. (aka balanced)

New cards
42

Concentration & Temperature Changes in Equilibrium

Increase will make it shift away, decrease will make it shift toward

New cards

Explore top notes

note Note
studied byStudied by 13 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 1 person
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 5 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 14 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 2286 people
Updated ... ago
5.0 Stars(3)
note Note
studied byStudied by 6 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 10 people
Updated ... ago
5.0 Stars(1)

Explore top flashcards

flashcards Flashcard31 terms
studied byStudied by 8 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard50 terms
studied byStudied by 6 people
Updated ... ago
4.0 Stars(2)
flashcards Flashcard28 terms
studied byStudied by 2 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard141 terms
studied byStudied by 16 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard64 terms
studied byStudied by 16 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard40 terms
studied byStudied by 162 people
Updated ... ago
4.8 Stars(8)
flashcards Flashcard31 terms
studied byStudied by 1 person
Updated ... ago
5.0 Stars(1)
flashcards Flashcard54 terms
studied byStudied by 27 people
Updated ... ago
5.0 Stars(1)