Brainscape's Knowledge GenomeTM

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


See full index

AS level chemistry > analytic chemistry > Flashcards

analytic chemistry Flashcards

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

what is analytic chemistry?

A
  • deals with methods used in determining the composition of various material
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is qualitative analysis?

A
  • process of identifying the material
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is quantitative analysis?

A

-process of quantification of material and determining purity of substance

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

what are the areas of chemical analysis?

A

1- identification
2- detection
3- quantification
4- separation

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

what are the classification of quantitative methods?

A

1- according to quantity to be analyzed
2-according to the technique

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

describe quantitative methods according to quantity to be analyzed

A

1- micromethods
: determination of quantities less than 1 mg
2- semi-micrometer
:determination of quantities ranging from 1-100mg
3-macromethods
:determination of quantities more than 100mg

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

describe quantitive methods according to the technique

A

1- volumetric and titrimetric methods
: analysis by volume
2- gravimetric methods
:analysis by weight
3- instrumental methods

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

what is instrumental method?

A

measures of physical property that is quantitavely related to concentration of material

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

what are the types of instrumental methods?

A
  • electrochemical methods
    -spectroscopic methods
  • seperation techniques
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

define volumetric or titrimetric analys

A

-a quantitative chemical analysis carried by determining the volume of solution of known concentration
which is required to react quantitively with measured volume of substance to be analyzed

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

what is standard solutions termed as?

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

what are the types of reactions used in titremetric analysis?

A

1-neutralization methods[acid-base reaction]
2- precipitation reaction [precipitimetry]
3- complexe formation reactions [complexometry]
4- electron transfer reactions[ redoximetry]

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

what are the requirenments for quantitative titrimetric analysis?

A

1- reaction between sample and standard solution must be simple and can be represented by a chemical
equation
2- reaction must be instantaneous[ catalyst can be used]
3-substance to be determined should react completely with titrant in stochiometric manner
4- end point easily detected

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

what are electrolytes?

A
  • substance when dissolved in water undergoes dissociation and allows solution to conduct electricty
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what are non-electrolytes?

A

substance that does not form a conducting solution when dissolved in water as they do not ionize

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

what is a strong electrolye?

A
  • substance when dissolved in water,dissociates to a high degree
17
Q

what is a weak electrolyte?

A
  • substance when dissolved in water that ionizes to a low degreee
18
Q

what type of electrolye is NH4Cl?

A
  • a strong electrolye salt
19
Q

what type of electrolyte is NH3?

A
  • a weak base electrolyte
20
Q

what are examples of non-electrolyte?

A

-sugar
-glycerine
-ethyl acetate

21
Q

what is formula for molarity?

A

M= moles of solute/volume of solution in liter

22
Q

what is the formula for molality?

A

m= moles of solute/ mass of solvent in kg

23
Q

what is the formula for mass percent?

A

-mass percent= mass of solute/mass of solution * 100

24
Q

what is the formula for volume percent?

A
  • volume percent= volume of solute/voulme of solution*100
25
Q

what is the mole fraction formula for A, in a,b,c

A

= A/A+B+C moles of A /total moles

26
Q

what is the formula of normality?

A

normality=molarity* n, where n is the number of protons/hydroxide ions per formula unit

27
Q

what is the formula for equivalent mass?

A

equivalent mass= molecular mass of acid or base or salt /by number of H+,OH- and total positive or negative charge

28
Q

what is the formula for equivalents?

A

equiavalents= molecular mass/equivalent mass

29
Q

what is the formula for strength of solution?

A

strength=mass of solute/volume of solution in liters

30
Q

what is the formula of strength in terms of molarity?

A

strength=molarity* molecular mass

31
Q

what is the formula of strength in terms of normality?

A

strength=normality* equivalent mass

32
Q

what is the formula of normality? not N=M*n

A

normality= equivalents of solute/volume of solution in liters

33
Q

what is the formula for equivalents, involving normality?

A

equivalents=normalityvolume in liter
milliequivalent=normality volume in ml

AS level chemistry (9 decks)

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