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For question E1, you have to find how long the fibers extend, given that you string together 1.00 mol Ag atoms, each of a radius of 144pm. For my answer I got 8.67 x 10^13 m. The solution manual gives us the final answer in kilometers. I was just wondering why the answer is given in kilometers and not meters because I thought that meters are considered the base unit.
I am also struggling with trying to figure out why the conversion works out like that as well. I am also confused about why 144pm is multiplied by 2 when doing the dimensional analysis method on the problem too.
I think the answer is given in kilometers because in class we learned that the SI fundamental unit for distance is kilometers (km), but I am also with you on generally answering in meters! I feel like most answers in the solution manual has units of meters, so I'm not sure how pressing this matter is of using kilometers.
I assume it was just to underscore the large number, but I don't think there would be any problem if you answered in meters in a question like this for a quiz or test. I think meters is always the safest bet.
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