Answer:
7.08 moles
Step-by-step explanation:
To find the number of moles of copper in 450 grams, we need to divide the given mass by the molar mass of copper.
The molar mass of copper can be found on the periodic table, and it is approximately 63.55 grams per mole.
So, the number of moles of copper in 450 grams is:
450 grams / 63.55 grams per mole = 7.08 moles