QC

Question 0

Establishes the realtive amt of a chemical sp in a sx

Answer 0

Quantitative ana

Question 1

Reveals the chemical identity of the species in a sx

Answer 1

Qualitative ana

Question 2

Amt of all the constituents is determined

Answer 2

Complete/ultimate

Question 3

One or more, but not all the constituents are determined

Answer 3

Partial

Question 4

Sx is more than 0.1g

Answer 4

Microanalysis

Question 5

Sx is more than 10-100mg

Answer 5

Semi micro ana

Question 6

Sx is 1-100mg

Answer 6

Microanalysis

Question 7

Sx is <1mg

Answer 7

Ultramicro analysis

Question 8

Analyte present is in high concentration

Answer 8

Macro or major

Question 9

Ana is in low conc

Answer 9

Trace analysis

Question 10

Involves the measurement of the volume of soln that will react with the analyte

Answer 10

Volumetric

Titrimetric

Question 11

Measurement of the weight of a sx of known identity

Answer 11

Gravimetric

Question 12

Based on the measurement of the physical and chemical props

Answer 12

Physicochemical

Instrumentation

Question 13

Portions of a material of approximately same size carried thru same analytical procedure

Answer 13

Replicate sx

Question 14

Species that causes an error by enhancing/attenuating the qty being measured

Answer 14

Interference

Question 15

Middle value in a data arranged in order of size

Answer 15

Median

Question 16

Indicates closeness of the measurement to its true or accepted value

Answer 16

Accuracy

Question 17

Reproducibility of measurements or closeness of results

Answer 17

Precision

Question 18

All steps in an analysis done in the absence of the sx

Corrects error due to contaminants

Answer 18

Blank det

Question 19

Data is scattered asymmetrically around a mean value

Reflected by precision in the measurement

Answer 19

Random/indeterminate

Question 20

Differs from the accepted value, either all high or all low

Affects accuracy of the results

Answer 20

Systematic/determinate

Question 21

Non aqueous acidimetry, neutral solvent

Answer 21

Acetonitrile
Alcohols
Chloroform
Benzene

Question 22

Non aqueous acidimetry, acidic solvent

Answer 22

Formic acid
GAA
Acetic anhydride

Question 23

Non aqueous acidimetry indicator

Answer 23

Crystal violet

Malachite green

Question 24

Used in the ana of cmpds of AG, Hg, halides and theophylline

Answer 24

Precipitation method

Question 25

Colored secondary ppt
K2CrO4 - indicator
AgNO3- titrant

Answer 25

Mohr

Question 26

Colored adsorption product

Flourescein, DCF, TEE, eosin y

Answer 26

Fajans

Question 27

Colored complex ion

Ferric alum indicator

Answer 27

Volhards

Question 28

Renders the metals in a soln inactive

Answer 28

Masking agents

Question 29

Suppress Al edta in presence of Mg edta

Answer 29

Triethanolamine

Question 30

(X) Hg, Cu

(Y) zn at ph 6

Answer 30

Thioglycols

Question 31

Direct edta titrations

Answer 31

Divalent ions

Question 32

Indicators for edta titration

Answer 32

Hydroxynaphthol blue
Eriochrome black
Dithizone

Question 33

Deep blue color at endpoint

Answer 33

Hydroxynaphthol blue

Eriochrome black

Question 34

Rose pink color at endpoint

Answer 34

Dithizone

Question 35

True redox indicators

Answer 35

Orthophenanthroline
Diphenylamine
Starch

Question 36

Malic acid
Hydrogen peroxide
Na nitrile

Answer 36

Permanganate method

Question 37

Ferrous uslfate assay

Vitamin k menadione

Answer 37

Ceric sulfate

Question 38

Titration with bromine

Answer 38

Phenol
Aniline
Cresol