Answer: 27.5 liters
Step-by-step explanation:
To calculate the moles, we use the equation:
For

Given mass = 100.0 g
Molar mass of
= 122.5 g/mol
Putting values in above equation, we get:


2 moles of
produces 3 moles of

0.82 moles of
produces =
moles of

Volume of

Thus 27.5 liters of
are produced by the complete decomposition of 100.0 g of
at STP