Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry > Acids and redox > Flashcards

Acids and redox Flashcards

1
Q

What must redox reactions balance in?

A

Electrons transferred (changes in oxidation numbers )

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

What is a proton acceptor?

A

A substance that accepts H+ ions

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

What is a proton donor?

A

A substance that donates/ releases H+ ions

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

What’s the difference between alkalis and bases?

A

Alkali is a base (accepts H+) that dissolves in water to release OH-

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

Name types of bases

A

Metal oxides
Metal carbonates
Metal hydroxides
Alkalis

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

Describe neutralisation

A

When H in acid is replaced by metal or ammonium ion

Acid + base= salt + water

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

Acid + carbonate=?

A

Salt + water + carbon dioxide

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

Acid + metal oxide=?

A

Salt + water

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

Name and give formula of common acids

A

Sulphuric acid (H2SO4)

Nitric acid (HNO3)

Ethanoic acid (CH3COOH)

Hydrochloric acid (HCl)

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

Name and give formula for common bases

A

Metal oxide (MgO)

Metal hydroxide (Ca(OH)2)

Metal carbonate (CaCO3)

Alkali (KOH)

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

What ways can you calculate water of crystallisation?

A

By subtracting M of anhydrous salt from M of hydrated compound and dividing it by 18 (M of H2O)

Finding ratio of moles

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

What is the water of crystallisation?

A

The water that is bonded within the crystalline structure of a hydrated compound

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

Define concordant results

A

Results within o.1 dm3

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

Define titre

A

Minimum volume of solution needed to reach end point in a titration

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

What is a standard solution ?

A

A solution of known concentration

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

How do you prepare a standard solution?

A

?

17
Q

Metal hydroxide + acid =?

A

Salt + water

18
Q

What occurs during the neutralisation between an acid and ammonia ?

A

Ammonia accepts H+ to become ammonium ion (to form ammonium salt)

19
Q

What is the ionic equation for neutralisation?

A

H+. + OH- = H2O

20
Q

What’s the difference between sodium hydrogen carbonate (1) and sodium hydrocarbonate (2)?

A

1) Na H C

2) Na H O C

21
Q

What do ions ending in ate always have?

A

Oxygen

22
Q

What are oxidation numbers?

A

A measure of how oxidised a molecule is

23
Q

What’s the ON of a pure element ?

A

0

24
Q

What’s the difference between ionic charge and ON?

A

Ionic charge = sign after

ON = sign before

25
Q

What is the ON of monoatomic ions?

A

Same as charge

26
Q

What is the ON of F H and O in compounds?

A

F= -1

H= +1

O= -2

27
Q

What does anhydrous mean?

A

Without water of crystallisation

28
Q

What is oxonium?

A

H30+

29
Q

Give bronstead-lowry definition of acid

A

Proton donator

30
Q

Give bronstead-lowry definition of base

A

Proton acceptor

31
Q

Define strong acid and alkali

A

Fully dissociate to release H+/OH-

32
Q

How do you prepare a standard solution?

A 
N=cv to find moles of substance needed
N=m/M to find mass needed
Dissolve in water in beaker
Add to volumetric flask (set volume)
Add rinsings (distilled water)
Top up until miniscus is on line
33
Q

Name equipment of titration

A 
Pipette and pipette filler
Conical flask
Burette
White tile
Single indicator
Funnel
34
Q

What are the exceptions to the oxidation number rules?

A

H in metal hydride = - 1

O in peroxides =-1

35
Q

What do you remove in an ionic equation?

A

Spector ions

don’t change state

36
Q

What’s the difference between ionic and half equations?

A

Ionic show overall change

Half show gain/loss of electrons

37
Q

Why are reading take on titrations rounded +/- 0.005?

A

More accurate

38
Q

Name for solution of known and unknown concentration

A

Known= standard solution

Unknown = analyte

39
Q

Metal + acid =?

A

Salt + hydrogen

Chemistry (28 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions