Final answer:
The number of grams of copper metal that will react with 0.80 moles of oxygen gas is 101.68 grams of copper.
Step-by-step explanation:
To determine the number of grams of copper metal that will react with 0.80 moles of oxygen gas, we need to use the balanced chemical equation for the reaction between copper and oxygen.
Based on the balanced equation, the mole ratio between copper and oxygen is 2:1. This means that for every 2 moles of copper, 1 mole of oxygen is required.
Using the given number of moles of oxygen, we can set up a proportion:
0.80 moles O2 / 1 mole O2 = x moles Cu / 2 moles Cu
Solving for x, we find that x = 1.60 moles Cu.
To convert moles of copper to grams, we need to use the molar mass of copper which is 63.55 g/mol.
So, the number of grams of copper metal that will react with 0.80 moles of oxygen gas is 1.60 moles Cu x 63.55 g/mol = 101.68 grams of copper.