Chapter 2 Flashcards

1
Q

What is the ACID And BASE according to the Arrhenius theory

A

Acid is substances that ionises in water to give hydrogen ions (H+)
For example HCl

Base Is substances that are you nice to give hydroxide ions (OH)
For example NAOH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is acid and base according to Bronsted-Lowry theory

A

Acid is the substance which donate Proton

Base is the substance which accept proton 

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Bronsted - Lowry theory assumes …

A

Transfer of protons from an ACID to a BASE
Conjugate pairs 

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Free protons do not exist in the solution that’s why we can write a half reaction
True or false 

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The acid and Base Off a half reaction are called

A

Conjugate Pairs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Define the amphoteric and give an example

A

Is a species that can act as an acid or base
For example the water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Define the Conjugate base

A

Species that remains after an ACID donates it is H+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Define conjugate Acid

A

Species remains after base accept H+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the acid and base according to lewes theory

A

Acid is the substance which accept lone pairs of electrons
For example ALCL3

Base is substance which donate lone pairs of electrons
for example NH3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Lewis theory assume what

A

Donation of electrons from a base to an acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Classified the solutions

A

Electrolyte which dissociate and conduct electricity

None electrolytes Which don’t ionise and don’t conduct electricity 

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

When an acid or base is dissolved in water the Amount of disassociation depend on

A

The strength of the ACID, BASE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Give an example for weak acid and strong acid

A

Strong acid: hydrochloride acid HCl 
weak acid: Acetic acid CH3COOH 

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Give an example for strong base and weak base

A

Strong base NAOH
Weak base NH4OH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Define the Kw and it’s product of what

A

It is the molar equilibrium constant
It’s Product of the hydrogen concentration and hydroxide ion concentration [H+][OH-]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

KW equal what at 25°

A

10^-14

17
Q

True or false H2O is weekly dissociated

A

True

18
Q

In pure water the concentration of hydrogen and hydroxide is ..

A

Equal each other [H+]=[OH-]

19
Q

1 - define the pH of a solution
2- Define the pOH of a solution

A

PH= -log[H]
POH= -log[OH]

20
Q

Define the Pkw and what’s equall

A

It is the addition of PH with POH 
= PH+POH
It’s equal 14 

21
Q

 True or false
If PH value increases
[H] concentration decreases

A

True

22
Q

Determine the PH of ..
acid
alkaline
neutral 

A

Acid solution has pH less than 7
Alkaline solution has a pH more than 7
Neutral Solution  has PH = POH = 7

23
Q

Give an example for ( salt of strong acid and strong base ) and determine the PH

A

NaCl ,
Always neutral pH=7

24
Q

Define the relationship of Ka,[H3O+] and PH

INCREASE IN ACID STRINGTH

A

Ka, [H3o+] increase
PH decrease

25
Q

Define the relationship of kb,[H3O+] and PH

INCREASE IN BASE STRINGTH

A

Kb, PH increase
[H3O+] decrease