Quantitative Analytics Flashcards

1
Q

What meant by relative atomic mass?

A

Average mass of atom of an element relative to atomic mass unit

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2
Q

Relative molecular mass=>___ compound
Relative formula mass=>_____compound

A

Covalent
Ionic

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3
Q

What is formula of percentage of a part??

A

Part/total×100

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4
Q

What is meant by mole?

A

Chemical expression express amount of substance

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5
Q

What is meant by molar mass?

A

Substance its relative atomic mass measure in gram if its a compound

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6
Q

How to get mole ??

A

Mass/ar or mass(g)/mr
Or
V(dm3)/24

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7
Q

How to change mole/dm4 to g/dm3

A

Multiply mr

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8
Q

What’s meant by limited reagent?

A

Reagent which used up first during chemical reaction and limit amount of products that can be formed.

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9
Q

What’s meant by excess reagent?

A

Reagent which remain when chemical reaction stops

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10
Q

How to change tonne to kg

A

×1000

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11
Q

How to change kg to g

A

×1000

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12
Q

Formula of yield?

A

Actual yeild/theoretical yeild ×100

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13
Q

Formula of percentage of puritu

A

Mass of pure soluble/Mass of impute substance ×100

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14
Q

What is meant by concentration of solution?

A

Amount of solute dissolved in certain volume of solvent

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