Question

How many moles of oxygen atoms are in 5.0e-1 moles of CO₂?

a) 5.0e-1 moles
b) 1.0 mole
c) 2.5 moles
d) 1.0e-1 moles

Answer 1

The number of moles of oxygen atoms in 5.0e-1 moles of CO₂ is 1.0 mole.

Step-by-step explanation:

To determine the number of moles of oxygen atoms in 5.0e-1 moles of CO₂, we need to look at the chemical formula of CO₂. In each molecule of CO₂, there are 2 oxygen atoms. Therefore, if we have 5.0e-1 moles of CO₂, we would have 2 times that number of oxygen atoms, which is 1.0 mole. Therefore, the correct answer is b) 1.0 mole.