Final answer:
To find the number of moles in 8.5x10^25 molecules of CO2, you divide the number of molecules by Avogadro's number, resulting in 141 moles of CO2.
Step-by-step explanation:
To determine the number of moles in 8.5×1025 molecules of CO2, we can use Avogadro's number, which states that 1 mole of any substance contains 6.022×1023 particles. In this case, we have 8.5×1025 molecules of CO2.
So, dividing the number of molecules by Avogadro's number, we get:
8.5×1025 molecules / (6.022×1023 molecules/mol) = 141.0 moles