QUANTI (ANACHEM)

Question 1

May be defined as the application of the procedures of Quantitative Analytical Chemistry.

Answer 1

QUANTITATIVE PHARMACEUTICAL CHEMISTRY

Question 2

To the analysis and determination of the PURITY AND QUALITY OF DRUGS AND CHEMICALS used in pharmacy, official in USP/NF.

Answer 2

QPC

Question 3

To the ANALYSIS OF MEDICINAL AGENTS AND THEIR METABOLITES found in biological system.

Answer 3

QPC

Question 4

the DETERMINATION OF THE VOLUME of a solution of known concentration required to react with a given amount of the substance to be analyzed.

Answer 4

VOLUMETRIC ANALYSIS

Question 5

chromatographic, spectrophotometric, electrometric, thermal conductrimetric, refractrometric, polarimetric, etc.

Answer 5

INSTRUMENTAL TECHNIQUES APPLIED IN QPC

Question 6

Is achieved NOT BY HASTE, BUT BY PLANNING THE WORK so that two or more operations
may be carried out at one time.

Answer 6

ECONOMY OF TIME

Question 7

The reagents used in quantitative analysis must be

Answer 7

PURE

Question 8

Refers to the NUMERICAL DIFFERENCE between a MEASURED value and the TRUE value.

Answer 8

ERRORS

Question 9

Of any quantity is really something never know.

Answer 9

TRUE VALUE

Question 10

Also known as RANDOM ERROR

Answer 10

INDETERMINATE ERRORS

Question 11

Cause: Inability of the eye to detect slight changes in a readout device.

Answer 11

INDETERMINATE ERRORS

Question 12

Also known as SYSTEMATIC ERROR.

Answer 12

DETERMINATE ERRORS

Question 13

Caused by faulty procedure

Answer 13

ERROR OF METHOD

Question 14

Due to poor construction or calibration

Answer 14

APPARATUS ERROR

Question 15

 Are made of high-grade porcelain
 CAN WITHSTAND HIGH TEMPERATURES
 Use in the ignition of most drugs and precipitates

Answer 15

CRUCIBLE

Question 16

in evaporation, The dish should be covered by an

Answer 16

INVERTED FUNNEL or WATCH GLASS

Question 17

Means that two consecutive weighings do not differs by more than 0.5mg/g of
substances taken for the determination, the second weighing following an additional hour of drying.

Answer 17

DRIED TO CONSTANT WEIGHT

Question 18

An object is said to be CONSTANT WEIGHT when two consecutive weighing after
heating and cooling do not differ by

Answer 18

MORE THAN 0.2 mg

Question 19

A GLASS VESSEL rendered AIRTIGHT by means of ground contact surfaces, used to
MAINTAIN A DRY ATMOSPHERE for object that might be affected by moisture or carbon
dioxide.

Answer 19

DESICCATOR

Question 20

The desiccator is divided into two (2) compartments separated by a

Answer 20

PERFORATED PORCELAIN PLATE

Question 21

maintains a constant weight on the beam at all times, and the object is weighed by displacing its equivalent weight from the beam.

Answer 21

ANALYTICAL BALANCE

Question 22

Is the act of adding and measuring the volume of titrant used in the assay by
means of a buret

Answer 22

TITRATION

Question 23

Is the theoretical point at which equivalent amount of each (analyte and titrant)
have reacted.

Answer 23

STOICHIOMETRIC POINT / EQUIVALENCE POINT

Question 24

Is a concentration expression and is defined as the number of equivalents of solute per liter (equiv/liter) or milliequivalents per milliliter (meq/mL) of solution.

Answer 24

NORMALITY

Question 25

Is an expression of the concentration of a solution in terms of MOLES PER LITER or the number of moles per liter of solution.

Answer 25

MOLARITY

Question 26

Is determination of the concentration (Normality, Molarity) of a solution.

Answer 26

STANDARDIZATION

Question 27

May be accomplished by the USE OF ANOTHER STANDARD SOLUTION of known concentration (Normality or Molarity).

Answer 27

SECONDARY STANDARD

Question 28

Is defined as the weight of a substance chemically equivalent to 1mL of a standard solution.

Answer 28

TITER

Question 29

Graduated glass tubes of uniform bore throughout the whole length, used in the measurement of variable quantities of liquids.

Answer 29

BURETTE

Question 30

Should be graduated to deliver at standard temperature the volume indicated.

Answer 30

PIPETTE

Question 31

a type of pipette that is usually used

Answer 31

MEASURING PIPETTE

Question 32

Are used to prepare a standard solution.

Answer 32

VOLUMETRIC FLASK

Question 33

Are complex organic compounds used to: 1. Determine the end points in neutralization process, 2. Determine hydrogen-ion concentrations [H+], or 3. Indicate that a desired change in pH has been affected.

Answer 33

INDICATORS

Question 34

Attributes the color of indicators to certain groupings of the elements of a compound, and the change in color to a CHANGE IN MOLECULAR STRUCTURE .

Answer 34

ORGANIC THEORY

Question 35

indicators used When a STRONG ACID (sample) is titrated with a STRONG ALKALI (titrant) or vice versa

Answer 35

methyl orange methyl red phenolphthalein

Question 36

indicators used When a WEAK ACID (sample) is titrated with STRONG ALKALI (titrant)

Answer 36

phenolphthalein

Question 37

indicators used When a WEAK ALKALI (sample) is titrated with a STRONG ACID (titrant)

Answer 37

methyl res

Question 38

indicators used When a WEAK ALKALI (sample) is titrated with a STRONG ACID (titrant)

Answer 38

methyl red

Question 39

A ________ should never be titrated with a ________

Answer 39

WEAK ALKALI, WEAK ACID