Chemistry How long should you cut a piece of wire to obtain 0.0141 moles of copper?

AI Thread Summary
To determine the length of copper wire needed to obtain 0.0141 moles of copper, first calculate the mass of that amount, which is approximately 0.891 grams (using the molar mass of copper at 63.55 g/mol). Given the density of copper (8.92 g/cc), the volume can be calculated as 0.0999 cc. The volume of a cylinder formula (V = πr²h) can be used to find the length of the wire, where the radius is half the diameter (0.389 mm). After calculating the volume and rearranging the formula, the required length of wire can be determined. Understanding these calculations is essential for solving the original problem effectively.
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I'm having problems with this question.

A piece of copper wire has a diameter of 0.389mm. If copper has a density of 8.92g/cc, how long (in meters) should you cut a piece of wire to obtain 0.0141 moles of copper?

I tried finding the volume of the cylinder and other things, but I'm completely lost!

can someone help me??
 
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Try a simpler problem to start. What is the volume of a copper wire that has a diameter of 0.389mm and a length of 1m? What would be the mass of this wire?

Second, what is the mass of 0.0141mol of copper?
 
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