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Experiment 9 ; Interfacial phenomenon and surface tension.
35問 • 2年前
  • Quinn Karylle Fuentes
  • 通報

    問題一覧

  • 1

    is the force per unit length existing at the interface between two immiscible liquid phases, and like surface tension, has the units dynes/cm.

    Interfacial tension.

  • 2

    No interface possible.

    Gas-Gas.

  • 3

    Liquid surface, body of water exposed to atmosphere.

    Gas-Liquid.

  • 4

    Solid surface, table top.

    Gas-Solid.

  • 5

    Liquid-liquid interface, emulsion.

    Liquid-Liquid.

  • 6

    Suspension

    Liquid-Solid.

  • 7

    Powder particles in contact.

    Solid-Solid.

  • 8

    It is explained as being due to the pressure difference across the curved meniscus of the liquid in the capillary. Hence, the liquid will move up the capillary until the hydrostatic head produced equals the pressure drop across the curve meniscus

    Capillary rise method.

  • 9

    The principle of this instrument depends on the fact that the force necessary to detach a platinum-iridium ring immersed at the surface or interface is proportional to the surface or interfacial tension.

    Dunouy ring method.

  • 10

    Molecules or ions that are adsorbed at interfaces

    Surfactant.

  • 11

    An alternative term is an amphiphile which suggests that the molecule or ion has a certain affinity for both polar and non polar solvents

    Surfactant.

  • 12

    Carbohydtes, Sulfonates, Sulfates

    Anionic.

  • 13

    Salts formed from fatty acids and an organic amine such as triethanolamine

    Anionic.

  • 14

    Alkali soaps such as K+,Na+ , & NH4 + salts of lauric acid and oleic acid (True/False)

    True.

  • 15

    Ca++,Mg++,& Al+++ salts of fatty acids (True/False)

    True.

  • 16

    Used more as antiseptic

    Cationic.

  • 17

    inactivated in the presence of anions; used as preservative for eye drops

    Benzalkonium chloride.

  • 18

    most stable; undissociated surfactants; most widely used

    Non-ionic.

  • 19

    Give 5 examples of non-ionic that most widely used.

    Sorbitan ester, Glyceryl ester, polysorbates, polyethylene glycol ether and fatty acids.

  • 20

    contains both anion and cation

    Amphoteric.

  • 21

    What are examples of Ampotheric.

    Lecithin, cephalin, proteins.

  • 22

    HLB: 1-10 lipophilic surfactants (True/False)

    True.

  • 23

    HLB: above 10-20 hydrophilic surfactants (True/False)

    True.

  • 24

    Used as antifoaming agents, w/o emulsifying agent and wetting agent

    Lyophilic sorbitan esters.

  • 25

    Commercially available as Span, Arlacel, Glyceryl monostearate

    Lyophilic sorbitan esters.

  • 26

    Span 20

    Sorbitan monolaurate.

  • 27

    Span 40

    Sorbitan monopalmitate.

  • 28

    Span 60

    Sorbitan monostearate.

  • 29

    Span 65

    Sorbitan tristearate.

  • 30

    Span 80

    Sorbitan monooleate.

  • 31

    Span 85

    Sorbitan trioleate.

  • 32

    Aracel 83

    Sorbitan sesquioleate.

  • 33

    Used as o/w emulsifying agent, detergents and solubilizing agent

    Hydrophilic polyethylene sorbitan esters.

  • 34

    Commercially available as Tween, Myrj, Polysorbate

    Hydrophilic polyethylene sorbitan esters.

  • 35

    Acacia (10-20%) , gelatin, lecithin, cholesterol, agar, methylcellulose

    Natural emulsifying ageant.

  • Cell structure.

    Cell structure.

    Quinn Karylle Fuentes · 28問 · 2年前

    Cell structure.

    Cell structure.

    28問 • 2年前
    Quinn Karylle Fuentes

    Electrolytes and non electrolytes

    Electrolytes and non electrolytes

    Quinn Karylle Fuentes · 29問 · 2年前

    Electrolytes and non electrolytes

    Electrolytes and non electrolytes

    29問 • 2年前
    Quinn Karylle Fuentes

    MW

    MW

    Quinn Karylle Fuentes · 45問 · 2年前

    MW

    MW

    45問 • 2年前
    Quinn Karylle Fuentes

    POST LAB (EXP 4)

    POST LAB (EXP 4)

    Quinn Karylle Fuentes · 38問 · 2年前

    POST LAB (EXP 4)

    POST LAB (EXP 4)

    38問 • 2年前
    Quinn Karylle Fuentes

    Density and specific gravity

    Density and specific gravity

    Quinn Karylle Fuentes · 34問 · 2年前

    Density and specific gravity

    Density and specific gravity

    34問 • 2年前
    Quinn Karylle Fuentes

    FORCES OF ATTRACTION

    FORCES OF ATTRACTION

    Quinn Karylle Fuentes · 18問 · 2年前

    FORCES OF ATTRACTION

    FORCES OF ATTRACTION

    18問 • 2年前
    Quinn Karylle Fuentes

    Microbial growth

    Microbial growth

    Quinn Karylle Fuentes · 63問 · 2年前

    Microbial growth

    Microbial growth

    63問 • 2年前
    Quinn Karylle Fuentes

    Introduction.

    Introduction.

    Quinn Karylle Fuentes · 61問 · 2年前

    Introduction.

    Introduction.

    61問 • 2年前
    Quinn Karylle Fuentes

    Microbial control.

    Microbial control.

    Quinn Karylle Fuentes · 97問 · 2年前

    Microbial control.

    Microbial control.

    97問 • 2年前
    Quinn Karylle Fuentes

    States of matter

    States of matter

    Quinn Karylle Fuentes · 100問 · 2年前

    States of matter

    States of matter

    100問 • 2年前
    Quinn Karylle Fuentes

    Introduction.

    Introduction.

    Quinn Karylle Fuentes · 86問 · 2年前

    Introduction.

    Introduction.

    86問 • 2年前
    Quinn Karylle Fuentes

    Drug development.

    Drug development.

    Quinn Karylle Fuentes · 77問 · 2年前

    Drug development.

    Drug development.

    77問 • 2年前
    Quinn Karylle Fuentes

    CGMP

    CGMP

    Quinn Karylle Fuentes · 9問 · 2年前

    CGMP

    CGMP

    9問 • 2年前
    Quinn Karylle Fuentes

    Pharmaceutical ingredients.

    Pharmaceutical ingredients.

    Quinn Karylle Fuentes · 24問 · 2年前

    Pharmaceutical ingredients.

    Pharmaceutical ingredients.

    24問 • 2年前
    Quinn Karylle Fuentes

    Powdered & granules

    Powdered & granules

    Quinn Karylle Fuentes · 43問 · 2年前

    Powdered & granules

    Powdered & granules

    43問 • 2年前
    Quinn Karylle Fuentes

    Capsule.

    Capsule.

    Quinn Karylle Fuentes · 24問 · 2年前

    Capsule.

    Capsule.

    24問 • 2年前
    Quinn Karylle Fuentes

    Tablets.

    Tablets.

    Quinn Karylle Fuentes · 23問 · 2年前

    Tablets.

    Tablets.

    23問 • 2年前
    Quinn Karylle Fuentes

    Calculatiom of dose

    Calculatiom of dose

    Quinn Karylle Fuentes · 66問 · 2年前

    Calculatiom of dose

    Calculatiom of dose

    66問 • 2年前
    Quinn Karylle Fuentes

    Postlab 5&6

    Postlab 5&6

    Quinn Karylle Fuentes · 29問 · 2年前

    Postlab 5&6

    Postlab 5&6

    29問 • 2年前
    Quinn Karylle Fuentes

    COLLIGATIVE PROPERTIES.

    COLLIGATIVE PROPERTIES.

    Quinn Karylle Fuentes · 33問 · 2年前

    COLLIGATIVE PROPERTIES.

    COLLIGATIVE PROPERTIES.

    33問 • 2年前
    Quinn Karylle Fuentes

    SEMI SOLID

    SEMI SOLID

    Quinn Karylle Fuentes · 69問 · 2年前

    SEMI SOLID

    SEMI SOLID

    69問 • 2年前
    Quinn Karylle Fuentes

    Basic immunology

    Basic immunology

    Quinn Karylle Fuentes · 60問 · 2年前

    Basic immunology

    Basic immunology

    60問 • 2年前
    Quinn Karylle Fuentes

    Basic immunology (2)

    Basic immunology (2)

    Quinn Karylle Fuentes · 62問 · 2年前

    Basic immunology (2)

    Basic immunology (2)

    62問 • 2年前
    Quinn Karylle Fuentes

    Transdermal

    Transdermal

    Quinn Karylle Fuentes · 44問 · 2年前

    Transdermal

    Transdermal

    44問 • 2年前
    Quinn Karylle Fuentes

    Distribution.

    Distribution.

    Quinn Karylle Fuentes · 43問 · 2年前

    Distribution.

    Distribution.

    43問 • 2年前
    Quinn Karylle Fuentes

    Infectious disease.

    Infectious disease.

    Quinn Karylle Fuentes · 65問 · 2年前

    Infectious disease.

    Infectious disease.

    65問 • 2年前
    Quinn Karylle Fuentes

    Infectious diseases (2)

    Infectious diseases (2)

    Quinn Karylle Fuentes · 79問 · 2年前

    Infectious diseases (2)

    Infectious diseases (2)

    79問 • 2年前
    Quinn Karylle Fuentes

    Gram positive ( Bacteriology)

    Gram positive ( Bacteriology)

    Quinn Karylle Fuentes · 35問 · 2年前

    Gram positive ( Bacteriology)

    Gram positive ( Bacteriology)

    35問 • 2年前
    Quinn Karylle Fuentes

    All topic. ( Compressed.)

    All topic. ( Compressed.)

    Quinn Karylle Fuentes · 35問 · 2年前

    All topic. ( Compressed.)

    All topic. ( Compressed.)

    35問 • 2年前
    Quinn Karylle Fuentes

    All topic ( Compressed)

    All topic ( Compressed)

    Quinn Karylle Fuentes · 30問 · 2年前

    All topic ( Compressed)

    All topic ( Compressed)

    30問 • 2年前
    Quinn Karylle Fuentes

    All topics (compressed)

    All topics (compressed)

    Quinn Karylle Fuentes · 13問 · 2年前

    All topics (compressed)

    All topics (compressed)

    13問 • 2年前
    Quinn Karylle Fuentes

    Exercise 6 ; Isotonic solution.

    Exercise 6 ; Isotonic solution.

    Quinn Karylle Fuentes · 28問 · 2年前

    Exercise 6 ; Isotonic solution.

    Exercise 6 ; Isotonic solution.

    28問 • 2年前
    Quinn Karylle Fuentes

    Exercise 5 : Buffers.

    Exercise 5 : Buffers.

    Quinn Karylle Fuentes · 16問 · 2年前

    Exercise 5 : Buffers.

    Exercise 5 : Buffers.

    16問 • 2年前
    Quinn Karylle Fuentes

    Exercise 7 : Factors affecting solubility.

    Exercise 7 : Factors affecting solubility.

    Quinn Karylle Fuentes · 26問 · 2年前

    Exercise 7 : Factors affecting solubility.

    Exercise 7 : Factors affecting solubility.

    26問 • 2年前
    Quinn Karylle Fuentes

    Experiment 8: Disintegration.

    Experiment 8: Disintegration.

    Quinn Karylle Fuentes · 23問 · 2年前

    Experiment 8: Disintegration.

    Experiment 8: Disintegration.

    23問 • 2年前
    Quinn Karylle Fuentes

    EXP 9 : Aromatic ammonia spirit.

    EXP 9 : Aromatic ammonia spirit.

    Quinn Karylle Fuentes · 34問 · 2年前

    EXP 9 : Aromatic ammonia spirit.

    EXP 9 : Aromatic ammonia spirit.

    34問 • 2年前
    Quinn Karylle Fuentes

    EXP 10-11 : CAMPHOR WATER AND CINNAMON WATER.

    EXP 10-11 : CAMPHOR WATER AND CINNAMON WATER.

    Quinn Karylle Fuentes · 34問 · 2年前

    EXP 10-11 : CAMPHOR WATER AND CINNAMON WATER.

    EXP 10-11 : CAMPHOR WATER AND CINNAMON WATER.

    34問 • 2年前
    Quinn Karylle Fuentes

    EXP 12: ACACIA MUCILAGE

    EXP 12: ACACIA MUCILAGE

    Quinn Karylle Fuentes · 20問 · 2年前

    EXP 12: ACACIA MUCILAGE

    EXP 12: ACACIA MUCILAGE

    20問 • 2年前
    Quinn Karylle Fuentes

    EXP13&14 : Starch and Barrium sulfate.

    EXP13&14 : Starch and Barrium sulfate.

    Quinn Karylle Fuentes · 33問 · 2年前

    EXP13&14 : Starch and Barrium sulfate.

    EXP13&14 : Starch and Barrium sulfate.

    33問 • 2年前
    Quinn Karylle Fuentes

    EXP 15 : Liquid petroleum emulsion 1.0

    EXP 15 : Liquid petroleum emulsion 1.0

    Quinn Karylle Fuentes · 37問 · 2年前

    EXP 15 : Liquid petroleum emulsion 1.0

    EXP 15 : Liquid petroleum emulsion 1.0

    37問 • 2年前
    Quinn Karylle Fuentes

    EXP 15: Liquid petroleum emulsion 1.1

    EXP 15: Liquid petroleum emulsion 1.1

    Quinn Karylle Fuentes · 23問 · 2年前

    EXP 15: Liquid petroleum emulsion 1.1

    EXP 15: Liquid petroleum emulsion 1.1

    23問 • 2年前
    Quinn Karylle Fuentes

    Enterobacteriaceae

    Enterobacteriaceae

    Quinn Karylle Fuentes · 35問 · 2年前

    Enterobacteriaceae

    Enterobacteriaceae

    35問 • 2年前
    Quinn Karylle Fuentes

    Enterobacteriaceae.

    Enterobacteriaceae.

    Quinn Karylle Fuentes · 28問 · 2年前

    Enterobacteriaceae.

    Enterobacteriaceae.

    28問 • 2年前
    Quinn Karylle Fuentes

    LIQUID DOSAGE FORM 1.0

    LIQUID DOSAGE FORM 1.0

    Quinn Karylle Fuentes · 31問 · 2年前

    LIQUID DOSAGE FORM 1.0

    LIQUID DOSAGE FORM 1.0

    31問 • 2年前
    Quinn Karylle Fuentes

    Liquid dosage form

    Liquid dosage form

    Quinn Karylle Fuentes · 12問 · 2年前

    Liquid dosage form

    Liquid dosage form

    12問 • 2年前
    Quinn Karylle Fuentes

    MICROMERITICS 1.0

    MICROMERITICS 1.0

    Quinn Karylle Fuentes · 44問 · 2年前

    MICROMERITICS 1.0

    MICROMERITICS 1.0

    44問 • 2年前
    Quinn Karylle Fuentes

    EXP 7 : ENDOGENOUS AND EXOGENOUS MICROORGANISMS

    EXP 7 : ENDOGENOUS AND EXOGENOUS MICROORGANISMS

    Quinn Karylle Fuentes · 22問 · 2年前

    EXP 7 : ENDOGENOUS AND EXOGENOUS MICROORGANISMS

    EXP 7 : ENDOGENOUS AND EXOGENOUS MICROORGANISMS

    22問 • 2年前
    Quinn Karylle Fuentes

    EXP 8 : KIRBY-BAUER TECHNIQUE

    EXP 8 : KIRBY-BAUER TECHNIQUE

    Quinn Karylle Fuentes · 40問 · 2年前

    EXP 8 : KIRBY-BAUER TECHNIQUE

    EXP 8 : KIRBY-BAUER TECHNIQUE

    40問 • 2年前
    Quinn Karylle Fuentes

    EXP 9: STAPHYLOCOCCI

    EXP 9: STAPHYLOCOCCI

    Quinn Karylle Fuentes · 29問 · 2年前

    EXP 9: STAPHYLOCOCCI

    EXP 9: STAPHYLOCOCCI

    29問 • 2年前
    Quinn Karylle Fuentes

    Drug incompatibilities.

    Drug incompatibilities.

    Quinn Karylle Fuentes · 41問 · 2年前

    Drug incompatibilities.

    Drug incompatibilities.

    41問 • 2年前
    Quinn Karylle Fuentes

    Drug compatibilities.

    Drug compatibilities.

    Quinn Karylle Fuentes · 41問 · 2年前

    Drug compatibilities.

    Drug compatibilities.

    41問 • 2年前
    Quinn Karylle Fuentes

    BACTERIOLOGY 3

    BACTERIOLOGY 3

    Quinn Karylle Fuentes · 35問 · 2年前

    BACTERIOLOGY 3

    BACTERIOLOGY 3

    35問 • 2年前
    Quinn Karylle Fuentes

    BACTERIOLOGY 3

    BACTERIOLOGY 3

    Quinn Karylle Fuentes · 30問 · 2年前

    BACTERIOLOGY 3

    BACTERIOLOGY 3

    30問 • 2年前
    Quinn Karylle Fuentes

    SUSPENSION.

    SUSPENSION.

    Quinn Karylle Fuentes · 45問 · 2年前

    SUSPENSION.

    SUSPENSION.

    45問 • 2年前
    Quinn Karylle Fuentes

    Colloidal.

    Colloidal.

    Quinn Karylle Fuentes · 40問 · 2年前

    Colloidal.

    Colloidal.

    40問 • 2年前
    Quinn Karylle Fuentes

    BACTERIOLOGY 4 (Rickettsia)

    BACTERIOLOGY 4 (Rickettsia)

    Quinn Karylle Fuentes · 38問 · 2年前

    BACTERIOLOGY 4 (Rickettsia)

    BACTERIOLOGY 4 (Rickettsia)

    38問 • 2年前
    Quinn Karylle Fuentes

    BACTERIOLOGY.

    BACTERIOLOGY.

    Quinn Karylle Fuentes · 44問 · 2年前

    BACTERIOLOGY.

    BACTERIOLOGY.

    44問 • 2年前
    Quinn Karylle Fuentes

    Emulsion.

    Emulsion.

    Quinn Karylle Fuentes · 32問 · 2年前

    Emulsion.

    Emulsion.

    32問 • 2年前
    Quinn Karylle Fuentes

    EMULSION

    EMULSION

    Quinn Karylle Fuentes · 42問 · 2年前

    EMULSION

    EMULSION

    42問 • 2年前
    Quinn Karylle Fuentes

    MEDICAL RELATED PROBLEMS.

    MEDICAL RELATED PROBLEMS.

    Quinn Karylle Fuentes · 36問 · 2年前

    MEDICAL RELATED PROBLEMS.

    MEDICAL RELATED PROBLEMS.

    36問 • 2年前
    Quinn Karylle Fuentes

    MEDICATION RELATED PROBLEMS.

    MEDICATION RELATED PROBLEMS.

    Quinn Karylle Fuentes · 33問 · 2年前

    MEDICATION RELATED PROBLEMS.

    MEDICATION RELATED PROBLEMS.

    33問 • 2年前
    Quinn Karylle Fuentes

    Mycology.

    Mycology.

    Quinn Karylle Fuentes · 30問 · 2年前

    Mycology.

    Mycology.

    30問 • 2年前
    Quinn Karylle Fuentes

    Mycology 2.0

    Mycology 2.0

    Quinn Karylle Fuentes · 34問 · 2年前

    Mycology 2.0

    Mycology 2.0

    34問 • 2年前
    Quinn Karylle Fuentes

    m

    m

    Quinn Karylle Fuentes · 15問 · 2年前

    m

    m

    15問 • 2年前
    Quinn Karylle Fuentes

    ppr

    ppr

    Quinn Karylle Fuentes · 25問 · 2年前

    ppr

    ppr

    25問 • 2年前
    Quinn Karylle Fuentes

    MEDICAL DEVICES.

    MEDICAL DEVICES.

    Quinn Karylle Fuentes · 20問 · 2年前

    MEDICAL DEVICES.

    MEDICAL DEVICES.

    20問 • 2年前
    Quinn Karylle Fuentes

    Pharmacokinetics. (1.0)

    Pharmacokinetics. (1.0)

    Quinn Karylle Fuentes · 86問 · 1年前

    Pharmacokinetics. (1.0)

    Pharmacokinetics. (1.0)

    86問 • 1年前
    Quinn Karylle Fuentes

    Pharmacokinetics (1.1)

    Pharmacokinetics (1.1)

    Quinn Karylle Fuentes · 100問 · 1年前

    Pharmacokinetics (1.1)

    Pharmacokinetics (1.1)

    100問 • 1年前
    Quinn Karylle Fuentes

    Pharmacokinetics (1.2)

    Pharmacokinetics (1.2)

    Quinn Karylle Fuentes · 19問 · 1年前

    Pharmacokinetics (1.2)

    Pharmacokinetics (1.2)

    19問 • 1年前
    Quinn Karylle Fuentes

    Introduction.

    Introduction.

    Quinn Karylle Fuentes · 17問 · 1年前

    Introduction.

    Introduction.

    17問 • 1年前
    Quinn Karylle Fuentes

    Introduction of biochemistry

    Introduction of biochemistry

    Quinn Karylle Fuentes · 76問 · 1年前

    Introduction of biochemistry

    Introduction of biochemistry

    76問 • 1年前
    Quinn Karylle Fuentes

    Intro medicanal chemistry.

    Intro medicanal chemistry.

    Quinn Karylle Fuentes · 56問 · 1年前

    Intro medicanal chemistry.

    Intro medicanal chemistry.

    56問 • 1年前
    Quinn Karylle Fuentes

    Carbohydrates

    Carbohydrates

    Quinn Karylle Fuentes · 75問 · 1年前

    Carbohydrates

    Carbohydrates

    75問 • 1年前
    Quinn Karylle Fuentes

    Carbohydrates 1.1

    Carbohydrates 1.1

    Quinn Karylle Fuentes · 31問 · 1年前

    Carbohydrates 1.1

    Carbohydrates 1.1

    31問 • 1年前
    Quinn Karylle Fuentes

    Detect and quality variation.

    Detect and quality variation.

    Quinn Karylle Fuentes · 56問 · 1年前

    Detect and quality variation.

    Detect and quality variation.

    56問 • 1年前
    Quinn Karylle Fuentes

    INTRODUCTION

    INTRODUCTION

    Quinn Karylle Fuentes · 98問 · 1年前

    INTRODUCTION

    INTRODUCTION

    98問 • 1年前
    Quinn Karylle Fuentes

    lab (1-2)

    lab (1-2)

    Quinn Karylle Fuentes · 15問 · 1年前

    lab (1-2)

    lab (1-2)

    15問 • 1年前
    Quinn Karylle Fuentes

    lab 1-2

    lab 1-2

    Quinn Karylle Fuentes · 14問 · 1年前

    lab 1-2

    lab 1-2

    14問 • 1年前
    Quinn Karylle Fuentes

    Pharmaceutical chemistry.

    Pharmaceutical chemistry.

    Quinn Karylle Fuentes · 45問 · 1年前

    Pharmaceutical chemistry.

    Pharmaceutical chemistry.

    45問 • 1年前
    Quinn Karylle Fuentes

    Pharmaceutical chemistry 1.1

    Pharmaceutical chemistry 1.1

    Quinn Karylle Fuentes · 35問 · 1年前

    Pharmaceutical chemistry 1.1

    Pharmaceutical chemistry 1.1

    35問 • 1年前
    Quinn Karylle Fuentes

    Unit 3.

    Unit 3.

    Quinn Karylle Fuentes · 39問 · 1年前

    Unit 3.

    Unit 3.

    39問 • 1年前
    Quinn Karylle Fuentes

    Histamin and kinins

    Histamin and kinins

    Quinn Karylle Fuentes · 70問 · 1年前

    Histamin and kinins

    Histamin and kinins

    70問 • 1年前
    Quinn Karylle Fuentes

    PUD.

    PUD.

    Quinn Karylle Fuentes · 45問 · 1年前

    PUD.

    PUD.

    45問 • 1年前
    Quinn Karylle Fuentes

    ..

    ..

    Quinn Karylle Fuentes · 61問 · 1年前

    ..

    ..

    61問 • 1年前
    Quinn Karylle Fuentes

    Lipids.

    Lipids.

    Quinn Karylle Fuentes · 67問 · 1年前

    Lipids.

    Lipids.

    67問 • 1年前
    Quinn Karylle Fuentes

    lipids.

    lipids.

    Quinn Karylle Fuentes · 71問 · 1年前

    lipids.

    lipids.

    71問 • 1年前
    Quinn Karylle Fuentes

    LAB ✨

    LAB ✨

    Quinn Karylle Fuentes · 93問 · 1年前

    LAB ✨

    LAB ✨

    93問 • 1年前
    Quinn Karylle Fuentes

    Drug discovery.

    Drug discovery.

    Quinn Karylle Fuentes · 87問 · 1年前

    Drug discovery.

    Drug discovery.

    87問 • 1年前
    Quinn Karylle Fuentes

    disease of lipids.

    disease of lipids.

    Quinn Karylle Fuentes · 13問 · 1年前

    disease of lipids.

    disease of lipids.

    13問 • 1年前
    Quinn Karylle Fuentes

    Intro (identify structure)

    Intro (identify structure)

    Quinn Karylle Fuentes · 57問 · 1年前

    Intro (identify structure)

    Intro (identify structure)

    57問 • 1年前
    Quinn Karylle Fuentes

    Carbohydrates

    Carbohydrates

    Quinn Karylle Fuentes · 98問 · 1年前

    Carbohydrates

    Carbohydrates

    98問 • 1年前
    Quinn Karylle Fuentes

    Dynamic.

    Dynamic.

    Quinn Karylle Fuentes · 96問 · 1年前

    Dynamic.

    Dynamic.

    96問 • 1年前
    Quinn Karylle Fuentes

    Unit 1

    Unit 1

    Quinn Karylle Fuentes · 32問 · 1年前

    Unit 1

    Unit 1

    32問 • 1年前
    Quinn Karylle Fuentes

    問題一覧

  • 1

    is the force per unit length existing at the interface between two immiscible liquid phases, and like surface tension, has the units dynes/cm.

    Interfacial tension.

  • 2

    No interface possible.

    Gas-Gas.

  • 3

    Liquid surface, body of water exposed to atmosphere.

    Gas-Liquid.

  • 4

    Solid surface, table top.

    Gas-Solid.

  • 5

    Liquid-liquid interface, emulsion.

    Liquid-Liquid.

  • 6

    Suspension

    Liquid-Solid.

  • 7

    Powder particles in contact.

    Solid-Solid.

  • 8

    It is explained as being due to the pressure difference across the curved meniscus of the liquid in the capillary. Hence, the liquid will move up the capillary until the hydrostatic head produced equals the pressure drop across the curve meniscus

    Capillary rise method.

  • 9

    The principle of this instrument depends on the fact that the force necessary to detach a platinum-iridium ring immersed at the surface or interface is proportional to the surface or interfacial tension.

    Dunouy ring method.

  • 10

    Molecules or ions that are adsorbed at interfaces

    Surfactant.

  • 11

    An alternative term is an amphiphile which suggests that the molecule or ion has a certain affinity for both polar and non polar solvents

    Surfactant.

  • 12

    Carbohydtes, Sulfonates, Sulfates

    Anionic.

  • 13

    Salts formed from fatty acids and an organic amine such as triethanolamine

    Anionic.

  • 14

    Alkali soaps such as K+,Na+ , & NH4 + salts of lauric acid and oleic acid (True/False)

    True.

  • 15

    Ca++,Mg++,& Al+++ salts of fatty acids (True/False)

    True.

  • 16

    Used more as antiseptic

    Cationic.

  • 17

    inactivated in the presence of anions; used as preservative for eye drops

    Benzalkonium chloride.

  • 18

    most stable; undissociated surfactants; most widely used

    Non-ionic.

  • 19

    Give 5 examples of non-ionic that most widely used.

    Sorbitan ester, Glyceryl ester, polysorbates, polyethylene glycol ether and fatty acids.

  • 20

    contains both anion and cation

    Amphoteric.

  • 21

    What are examples of Ampotheric.

    Lecithin, cephalin, proteins.

  • 22

    HLB: 1-10 lipophilic surfactants (True/False)

    True.

  • 23

    HLB: above 10-20 hydrophilic surfactants (True/False)

    True.

  • 24

    Used as antifoaming agents, w/o emulsifying agent and wetting agent

    Lyophilic sorbitan esters.

  • 25

    Commercially available as Span, Arlacel, Glyceryl monostearate

    Lyophilic sorbitan esters.

  • 26

    Span 20

    Sorbitan monolaurate.

  • 27

    Span 40

    Sorbitan monopalmitate.

  • 28

    Span 60

    Sorbitan monostearate.

  • 29

    Span 65

    Sorbitan tristearate.

  • 30

    Span 80

    Sorbitan monooleate.

  • 31

    Span 85

    Sorbitan trioleate.

  • 32

    Aracel 83

    Sorbitan sesquioleate.

  • 33

    Used as o/w emulsifying agent, detergents and solubilizing agent

    Hydrophilic polyethylene sorbitan esters.

  • 34

    Commercially available as Tween, Myrj, Polysorbate

    Hydrophilic polyethylene sorbitan esters.

  • 35

    Acacia (10-20%) , gelatin, lecithin, cholesterol, agar, methylcellulose

    Natural emulsifying ageant.