(a)
Interpretation:
Concept introduction:
The concentration units are preferentially expressed in parts per million in cases where the solute is present in very minor amount. Analogous to the percentage concentration parts per million is defined as number of parts of solute present in
In terms of volume, the parts per million may be expressed as follows:
The conversion factor to convert micrograms to kilograms is as follows:
The conversion factor to convert kilograms to grams is as follows:
(b)
Interpretation:
Concept introduction:
The concentration units are preferentially expressed in parts per million in cases where the solute is present in very minor amount. Analogous to the percentage concentration parts per million is defined as number of parts of solute present in
In terms of volume, the parts per million may be expressed as follows:
The conversion factor to convert micrograms to kilograms is as follows:
The conversion factor to convert kilograms to grams is as follows:
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