Unit 4: Acids, Bases And Salts (1)

Question 0

According to Arrhenius theory a base is any substance which…

Answer 0

Releases OH- (aq) in water

Question 1

According to Arrhenius theory and acid is any substance which….

Answer 1

Releases H+ (aq) in water

Question 2

According to Arrhenius theory a salt is…

Answer 2

The neutralization product which results when an acid and a base react

Question 3

A ____ is any ionic compound which is neither an acid or a base

Answer 3

Salt

Question 4

An ____ is any ionic species whose formula that starts with an “H”

Answer 4

Acid

Question 5

A ____ is any ionic species whose formula that ends with an “OH”

Answer 5

Base

Question 6

What is a species that contains ions and does not start with “H” or end in “OH” called?

Answer 6

A salt

Question 7

The general equation for a acid-base neutralization reaction is…

Answer 7

ACID + BASE => SALT + WATER

Question 8

H+ + OH- => ?

Answer 8

H2O

Question 9

Acids usually…. (5 things)

Answer 9

• react with bases
• are electrolytes
• act on some metals to produce H2 (g)
• turn litmus paper RED
• taste sour

Question 10

Bases usually…. (5 things)

Answer 10

• react with acids
• are electrolytes
• feel slippery (react with skin and fat to make soap)
• turn litmus paper BLUE
• taste bitter

Question 11

The presence of _____ accounts for the properties of those substances which are traditionally called “acids”

Answer 11

“H+”

Question 12

The presence of _____ accounts for the properties of those substances which are traditionally called “based”

Answer 12

“OH-“

Question 13

______ metal is used to to test for presence of acids because it id just sufficiently reactive to produce H2 (g) when put into acids

Answer 13

Magnesium

Question 14

H+ + H2O => ?

Answer 14

H3O+

Question 15

H+ is called the ___

Answer 15

Proton

Question 16

_____ is called the hydronium ion or the hydrated proton

Answer 16

H3O+

Question 17

What we previously called H+ (aq) is actually ____

Answer 17

H3O+

Question 18

An ___ is a proton donor

Answer 18

Acid

Question 19

A ___ is a proton acceptor

Answer 19

Base

Question 20

According to the Brønsted-Lowry theory an ___ is a substance which donates a proton to another substance

Answer 20

Acid

Question 21

According to the Brønsted-Lowry theory a ___ is a substance which accepts a proton from another substance

Answer 21

Base

Question 22

Monoprotic acid, diprotic acid, tripotic acid, and polyprotic acid all describe the _____ of protons the acid can supply

Answer 22

Amount (or number)

Question 23

If a substance has a negative charge and still has an easily removable hydrogen then the substance I’ll be ____

Answer 23

Amphiprotic

Question 24

Assume all hydrogens are easily removable except this attached to ____

Answer 24

Carbon

Question 25

A conjugate acid-base pair (or conjugate pair) is a pair of chemical species differs by....

Answer 25

Only one proton

Question 26

A conjugate acid is the member of the conjugate pair which has....

Answer 26

The extra proton

Question 27

The conjugate base is the member of a conjugate pair which lacks....

Answer 27

The extra proton

Question 28

A strong acid or base is _____ ionized in solution

Answer 28

100%

Question 29

A weak acid or base is less than ____ ionized in solution

Answer 29

100%

Question 30

All equilibrium a involve ___ acids and bases

Answer 30

Weak

Question 31

The terms weak and strong refer to the.... And The terms dilute and concentrated refer to the....

Answer 31

...Percentage of ionization | ... Molarity of a solution

Question 32

When a substance acts as an acid with water ___ is alway produced

Answer 32

h3O+

Question 33

The stronger the acid the ____ the [H3O+] produced

Answer 33

Greater

Question 34

When a substance acts as a base with a water, ____ is always produced.

Answer 34

OH-

Question 35

The stronger the base, the ____ the [OH-] produced

Answer 35

Greater

Question 36

Due to the levelling effect ____ is the strongest acid

Answer 36

H3O+

Question 37

All six acids at the top of the table are ___(different?/equal?) in strength

Answer 37

Equal

Question 38

A substance is ___ when [H3O+] = [OH-]

Answer 38

Neutral

Question 39

A substance is ___ when [H3O+] > [OH-]

Answer 39

Acidic

Question 40

A substance is ___ when [H3O+]

Answer 40

Basic

Question 41

The value of Ka is called....

Answer 41

Acid ionization constant

Question 42

The value for Kb is called the...

Answer 42

Base ionization constant

Question 43

For a conjugate pair Ka x Kb =___

Answer 43

Kw

Question 44

Ka (reactant acid) / Ka (product acid)=?

Answer 44

Keq

Question 45

Keq is the concentration of _____ over the concentration of _____

Answer 45

ReactAnts | Products

Question 46

pH=?

Answer 46

-log[H3O+]

Question 47

pOH=?

Answer 47

-log[OH-]

Question 48

pKw=pH + pOH. What is the value of pKw?

Answer 48

14

Question 49

Strong acids and bases ___ (do/do not) react with salts

Answer 49

Don't

Question 50

What tests would you use to tell wether a solution was acidic or basic? (2 basic things)

Answer 50

1-litmus paper (red=acid; blue=base) | 2-add magnesium (bubbles=acid)

Question 51

H+ (aq) and H3O+ (aq) are the ____ (same/different).

Answer 51

Same

Question 52

The Arrhenius theory does account for the existence of equilibriums so a second theory wAs created called the ____ theory.

Answer 52

Brønsted-Lowry

Question 53

In every Brønsted-Lowry reaction there is an acid and a base on both sides of the equation. True or false?

Answer 53

True

Question 54

A substance is amphiprotic if____ and ___.

Answer 54

It possesses a negative chArge | Has an easily removable hydrogen

Question 55

Organic acids end in?

Answer 55

COOH

Question 56

Organic bases contain either ___ or ___ and the ___ accepts the H+

Answer 56

NH2 NH Nitrogen

Question 57

What is a way to tell if an unknown aqueous solution is a weak or strong acid?

Answer 57

Conductivity. Very conductive=strong; not very conductive=weak

Question 58

When water is heated, what happens to the [H3O+]?

Answer 58

It increases

Question 59

Is hot water basic, acidic or neutral?

Answer 59

Neutral [OH-] increase with [H3O+] Aka [OH-]= [H3O+]

Question 60

As water is heated what happens to its Kw?

Answer 60

Kw increases!

Question 61

[H3O+] X [OH-] = ?

Answer 61

Kw