Answer :
The mass of oxygen form from 2.72 g
is 1.06 grams.
The mass of oxygen form from 0.361 g
is 0.141 grams.
The mass of oxygen form from 83.6 kg
is 32.7 kilograms.
The mass of oxygen form from 22.5 mg
is 8.81 milligrams.
Explanation :
The given chemical reaction is:

Molar mass of
= 122.55 g/mol
Molar mass of
= 32 g/mol
<u>For 2.72 g
:</u>
From the balanced chemical reaction we conclude that,
As,
grams of
decomposes to give
grams of 
So,
grams of
decomposes to give
grams of 
Thus, the mass of oxygen form from 2.72 g
is 1.06 grams.
<u>For 0.361 g
:</u>
From the balanced chemical reaction we conclude that,
As,
grams of
decomposes to give
grams of 
So,
grams of
decomposes to give
grams of 
Thus, the mass of oxygen form from 0.361 g
is 0.141 grams.
<u>For 83.6 kg
:</u>
From the balanced chemical reaction we conclude that,
As,
grams of
decomposes to give
grams of 
So,
of
decomposes to give
of 
Thus, the mass of oxygen form from 83.6 kg
is 32.7 kilograms.
<u>For 22.5 mg
:</u>
From the balanced chemical reaction we conclude that,
As,
grams of
decomposes to give
grams of 
So,
of
decomposes to give
of 
Thus, the mass of oxygen form from 22.5 mg
is 8.81 milligrams.