<u>Answer:</u> The mass of oxygen gas produced is 2.4 grams
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
.....(1)
Given mass of ammonium perchlorate = 8.84 g
Molar mass of ammonium perchlorate = 117.5 g/mol
Putting values in equation 1, we get:
The chemical equation for the decomposition of ammonium perchlorate follows:
By Stoichiometry of the reaction:
2 moles of ammonium perchlorate produces 2 moles of oxygen gas.
So, 0.0752 moles of ammonium perchlorate will produce = of oxygen gas
Now, calculating the mass of oxygen gas from equation 1, we get:
Molar mass of oxygen gas = 32 g/mol
Moles of oxygen gas = 0.0752 moles
Putting values in equation 1, we get:
Hence, the mass of oxygen gas produced is 2.4 grams