Ch1 Flashcards

1
Q

Volumetric analysis is

A

Quantitive analyses measuring volume to find the concentration of solution

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2
Q

The advantages of volumetric analyses

A

Simple fast results easy processes different method for different types of substances

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3
Q

The disadvantage of volumetric analyses are 

A

Open system human error and large volume of chemical waste 

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4
Q

What are the requirements of the titration

A

Conical flask
titrant
indicator
analyte
buert 

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5
Q

What are the requirements of a titration reaction

A

Stoichiometric
Specific no side reaction
Rapid
 quantitive 100% complete
marked change in some properties for example colour

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6
Q

The equivalence point and the endpoint

A

The equivalence point is theoretical point
The end point is observed point

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7
Q

What is the titration error

A

The difference between the equivalence point and the endpoint 

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8
Q

What is the primary standard

A

A standard solution that could be prepared by dissolving accurately weighted quantity of highly pure material

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9
Q

What happened if the material is not sufficiently pure

A

We cannot prepare standard directly and it Standardised Buy a primary standard

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10
Q

Secondary standard is
Give the accurately and example

A

Is less accurately than primary standard
The example is NAOH Sodium hydroxide 

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11
Q

What are the requirements of primary standard

A

1-Should be 100% pure
2-Stable to drying temperature
3-High formula weight (reduces Error in weighing)
4-Inexpensive
5-Process the properties required for titration

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12
Q

Give an examples of primary standard acid

A

Potassium acid phathalate KHP

Potassium hydrogen iodate KH(IO3)2

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13
Q

Examples of primary standard basis

A

sodium carbonate
Sodium tetraborate

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14
Q

Classification of titration methods

A

Acid-base titration
redox titration
Complexometric Titration

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