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PHARM ANA LAB > M5 > Flashcards

M5 Flashcards

(34 cards)

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1
Q
  • Uses KMnO4 standard
    solutions
    – Standardized easily
    – RETAINS CONCENTRATION over long periods
    – SODIUM OXALATE as suitable primary standard.
  • Sodium oxalate + H2SO4 = Oxalic acid
A

PERMANGANOMETRY

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2
Q

Reactions process becomes more rapidly over time (AUTOCATALYSIS)

A

PERMANGANOMETRY

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3
Q

Standardization of 0.1 N KMnO4
* Type and Methods: ________
* Titrant: 0.1N KMNO4
* Stock Solution: 0.1N KMNO4
* Primary Standard: Sodium oxalate (Na2C2O4)
* Indicator: none
* Endpoint: pink

A

DIRECT PERMANGANOMETRY

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4
Q

Standardization of 0.1 N KMnO4
* Type and Methods: Direct Permanganometry
* Titrant: _________
* Stock Solution: 0.1N KMNO4
* Primary Standard: Sodium oxalate (Na2C2O4)
* Indicator: none
* Endpoint: pink

A

0.1N KMNO4

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5
Q

Standardization of 0.1 N KMnO4
* Type and Methods: Direct Permanganometry
* Titrant: 0.1N KMNO4
* Stock Solution: 0.1N KMNO4
* Primary Standard: _________
* Indicator: none
* Endpoint: pink

A

SODIUM OXALATE (Na2C2O4)

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6
Q

Standardization of 0.1 N KMnO4
* Type and Methods: Direct Permanganometry
* Titrant: 0.1N KMNO4
* Stock Solution: 0.1N KMNO4
* Primary Standard: Sodium oxalate (Na2C2O4)
* Indicator: _____
* Endpoint: pink

A

none

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7
Q

Standardization of 0.1 N KMnO4
* Type and Methods: Direct Permanganometry
* Titrant: 0.1N KMNO4
* Stock Solution: 0.1N KMNO4
* Primary Standard: Sodium oxalate (Na2C2O4)
* Indicator: none
* Endpoint: _____

A

PINK

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8
Q

Active ingredient in AGUA OXIGENADA

A

HYDROGEN PEORXIDE (H2O2)

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9
Q

3% agua oxigenada

A

antiseptic

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10
Q

6% agua oxigenada

A

bleaching agent

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11
Q

red bottle

A

3%

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12
Q

blue bottle

A

6%

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13
Q

Redox Titrimetry
* Type and Methods: __________
* Titrant: 0.1 N KMnO4
* Standard Solution: 0.1 N KMnO4
* Analyte: Hydrogen peroxide (H2O2)
* Indicator: none
* Endpoint: pink color
* USP Limit: 2.5 to 3.5%

A

DIRECT PERMANGANOMETRY

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14
Q

Redox Titrimetry
* Type and Methods: Direct Permanganometry
* Titrant: _________
* Standard Solution: 0.1 N KMnO4
* Analyte: Hydrogen peroxide (H2O2)
* Indicator: none
* Endpoint: pink color
* USP Limit: 2.5 to 3.5%

A

0.1N KMNO4

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15
Q

Redox Titrimetry
* Type and Methods: Direct Permanganometry
* Titrant: 0.1 N KMnO4
* Standard Solution: 0.1 N KMnO4
* Analyte: _________
* Indicator: none
* Endpoint: pink color
* USP Limit: 2.5 to 3.5%

A

HYDROGEN PEROXIDE (H2O2

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16
Q

Redox Titrimetry
* Type and Methods: Direct Permanganometry
* Titrant: 0.1 N KMnO4
* Standard Solution: 0.1 N KMnO4
* Analyte: Hydrogen peroxide (H2O2)
* Indicator: ______
* Endpoint: pink color
* USP Limit: 2.5 to 3.5%

17
Q

Redox Titrimetry
* Type and Methods: Direct Permanganometry
* Titrant: 0.1 N KMnO4
* Standard Solution: 0.1 N KMnO4
* Analyte: Hydrogen peroxide (H2O2)
* Indicator: none
* Endpoint: _______
* USP Limit: 2.5 to 3.5%

18
Q

Redox Titrimetry
* Type and Methods: Direct Permanganometry
* Titrant: 0.1 N KMnO4
* Standard Solution: 0.1 N KMnO4
* Analyte: Hydrogen peroxide (H2O2)
* Indicator: none
* Endpoint: pink color
* USP Limit: __________

19
Q
  • A WEAK OXIDIZING agent
    – Primary used for DETERMINATION OF STRONG REDUCING AGENTS
20
Q

Iodine crystals are NOT very

Study These Flashcards
A

WATER SOLUBLE

21
Q

added as solubilizing agent

Study These Flashcards
A

POTASSIUM IODIDE (KI)

22
Q

1g: ______

23
Q

Standardization of 0.1 N Iodine
* Type and Methods: _____
* Titrant: 0.1 N Iodine
* Stock Solution: 0.1 N Iodine
* Primary Standard: Arsenic trioxide (As2O3)
* Indicator: Starch
* Endpoint: Blue-black color

24
Q

Standardization of 0.1 N Iodine
* Type and Methods: Iodimetry
* Titrant: __________
* Stock Solution: 0.1 N Iodine
* Primary Standard: Arsenic trioxide (As2O3)
* Indicator: Starch
* Endpoint: Blue-black color

25
Standardization of 0.1 N Iodine * Type and Methods: Iodimetry * Titrant: 0.1 N Iodine * Stock Solution: 0.1 N Iodine * Primary Standard: ___________ * Indicator: Starch * Endpoint: Blue-black color
ARSENIC TRIOXIDE (As2O)
26
Standardization of 0.1 N Iodine * Type and Methods: Iodimetry * Titrant: 0.1 N Iodine * Stock Solution: 0.1 N Iodine * Primary Standard: Arsenic trioxide (As2O3) * Indicator: _________ * Endpoint: Blue-black color
STARCH
27
Standardization of 0.1 N Iodine * Type and Methods: Iodimetry * Titrant: 0.1 N Iodine * Stock Solution: 0.1 N Iodine * Primary Standard: Arsenic trioxide (As2O3) * Indicator: Starch * Endpoint: ________
BLUE-BLACK COLOR
28
a WHITE TO VERY PALE YELLOW crystalline powder with a pleasant sharp acidic taste, almost odorless * A fairly STRONG REDUCING AGENT
ASCORBIC ACID C6H8O6
29
Redox Titrimetry * Type and Method: __________ * Titrant: 0.1 N Iodine * Standard Solution: 0.1 N Iodine (M5 L3) * Analyte: Ascorbic acid (C6H8O6) * Indicator: Starch * Endpoint: Blue-black color * USP Limit: 99.0 to 100.5%
DIRECT IODIMETRY
30
Redox Titrimetry * Type and Method: Direct Iodimetry * Titrant: ______ * Standard Solution: 0.1 N Iodine (M5 L3) * Analyte: Ascorbic acid (C6H8O6) * Indicator: Starch * Endpoint: Blue-black color * USP Limit: 99.0 to 100.5%
0.1N IODINE
31
Redox Titrimetry * Type and Method: Direct Iodimetry * Titrant: 0.1 N Iodine * Standard Solution: 0.1 N Iodine (M5 L3) * Analyte: ____________ * Indicator: Starch * Endpoint: Blue-black color * USP Limit: 99.0 to 100.5%
ASCORBIC ACID C6H8O6
32
Redox Titrimetry * Type and Method: Direct Iodimetry * Titrant: 0.1 N Iodine * Standard Solution: 0.1 N Iodine (M5 L3) * Analyte: Ascorbic acid (C6H8O6) * Indicator: _______ * Endpoint: Blue-black color * USP Limit: 99.0 to 100.5%
STARCH
33
Redox Titrimetry * Type and Method: Direct Iodimetry * Titrant: 0.1 N Iodine * Standard Solution: 0.1 N Iodine (M5 L3) * Analyte: Ascorbic acid (C6H8O6) * Indicator: Starch * Endpoint: _________ * USP Limit: 99.0 to 100.5%
BLUE-BLACK COLOR
34
Redox Titrimetry * Type and Method: Direct Iodimetry * Titrant: 0.1 N Iodine * Standard Solution: 0.1 N Iodine (M5 L3) * Analyte: Ascorbic acid (C6H8O6) * Indicator: Starch * Endpoint: Blue-black color * USP Limit: _______
99.0 - 100.5%

PHARM ANA LAB (7 decks)

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