2.65E4 moles e x (6.022E23 e/mole e) x (1 e/1g) = ? kg.
To solve this problem, you'll need to perform a series of unit conversions. Here's a step-by-step breakdown of how to get the answer:
Step 1: Start with the given value of moles of electrons:
2.65E4 moles e
Step 2: Use Avogadro's number to convert moles of electrons to the number of electrons:
2.65E4 moles e x (6.022E23 e/mole e)
Note: The unit "e" represents electrons.
Step 3: Convert electrons to grams of electrons using the fact that 1 electron weighs 1 gram:
(6.022E23 e/mole e) x (1 e/1g)
Step 4: Multiply these two conversion factors to obtain the result:
2.65E4 moles e x (6.022E23 e/mole e) x (1 e/1g) = ? g
The final answer will be in grams. If you want to convert it to kilograms, divide the answer by 1000:
? g / 1000 = ? kg
Perform these calculations, and you will get the answer in kilograms.