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Morgarella [4.7K]
3 years ago
5

What does percent composition tell you about a substance?

Chemistry
1 answer:
beks73 [17]3 years ago
8 0

Answer:

Percent composition tells you which types of atoms (elements) are present in a molecule and their levels. Percent composition can also tell you about the different elements present in an ionic compound as well.

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3 years ago
How many milliliters of a 0.40%(w/v) solution of nalorphine must be injected to obtain a dose of 1.5 mg?
ozzi
The number  of Ml  of  a  0.40 %w/v solution  of   ,nalorphine  that must  be injected  to  obtain  a  dose  of 1.5 mg is  calculated as  below


since M/v%   is  mass  of solute  in  grams per 100  ml

convert Mg to  g
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volume is therefore =  100 (  mass/ M/v%)

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6 0
3 years ago
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