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PHARM ANA LEC > QUANTI (ANACHEM) > Flashcards

QUANTI (ANACHEM) Flashcards

1
Q

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

A

QUANTITATIVE PHARMACEUTICAL CHEMISTRY

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2
Q

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

A

QPC

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3
Q

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

A

QPC

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4
Q

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

A

VOLUMETRIC ANALYSIS

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5
Q

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

A

INSTRUMENTAL TECHNIQUES APPLIED IN QPC

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6
Q

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

A

ECONOMY OF TIME

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7
Q

The reagents used in quantitative analysis must be

A

PURE

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8
Q

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

A

ERRORS

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9
Q

Of any quantity is really something never know.

A

TRUE VALUE

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10
Q

Also known as RANDOM ERROR

A

INDETERMINATE ERRORS

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11
Q

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

A

INDETERMINATE ERRORS

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12
Q

Also known as SYSTEMATIC ERROR.

A

DETERMINATE ERRORS

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13
Q

Caused by faulty procedure

A

ERROR OF METHOD

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14
Q

Due to poor construction or calibration

A

APPARATUS ERROR

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15
Q

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

A

CRUCIBLE

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16
Q

in evaporation, The dish should be covered by an

A

INVERTED FUNNEL or WATCH GLASS

17
Q

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.

A

DRIED TO CONSTANT WEIGHT

18
Q

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

A

MORE THAN 0.2 mg

19
Q

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.

A

DESICCATOR

20
Q

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

A

PERFORATED PORCELAIN PLATE

21
Q

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

A

ANALYTICAL BALANCE

22
Q

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

23
Q

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

A

STOICHIOMETRIC POINT / EQUIVALENCE POINT

24
Q

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.

25
Q

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

26
Q

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

A

STANDARDIZATION

27
Q

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

A

SECONDARY STANDARD

28
Q

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

29
Q

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

30
Q

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

31
Q

a type of pipette that is usually used

A

MEASURING PIPETTE

32
Q

Are used to prepare a standard solution.

A

VOLUMETRIC FLASK

33
Q

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.

A

INDICATORS

34
Q

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 .

A

ORGANIC THEORY

35
Q

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

A

methyl orange
methyl red
phenolphthalein

36
Q

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

A

phenolphthalein

37
Q

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

A

methyl res

38
Q

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

A

methyl red

39
Q

A ________ should never be titrated with a ________

A

WEAK ALKALI, WEAK ACID

PHARM ANA LEC (11 decks)

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