Answer:
100
Step-by-step explanation:
The balanced chemical equation for the combustion of any hydrocarbon in oxygen is:
CₙHₘ + (n + m/4)O₂ → nCO₂ + m/2H₂O
In this case, we don't have a hydrocarbon, but we can assume that the oxygen is reacting with some substance that contains carbon to produce carbon dioxide. Let's assume that the balanced chemical equation for this reaction is:
C + O₂ → CO₂
From the equation, we can see that 1 mole of carbon reacts with 1 mole of oxygen to produce 1 mole of carbon dioxide. The molar mass of oxygen is 32 g/mol and the given mass is 100 g, so we have:
100 g / 32 g/mol = 3.125 mol of oxygen
Since the balanced chemical equation shows that 1 mole of oxygen reacts with 1 mole of carbon dioxide, we can conclude that 3.125 moles of oxygen will produce 3.125 moles of carbon dioxide.