Question

How many moles of copper are in 6,000,000 atoms of copper?

Answer 1

Hello @sandeep140499 !

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Answer 2

\[6.022~X~10^{23}\] copper atoms form one mole of it

Answer 3

So, divide 6,000,000 with it and u will get the no of moles

Answer 4

@sandeep140499 a completely similar but slightly different question is:

How many dozen eggs is 36,000 eggs?

Answer 5

yes very truly said @Kainui

Answer 6

u just need to apply simple unitary method

Answer 7

lol AB i thought you were gonna actually answer xD

Answer 8

I know when I first learned this I didn't really "get" what a mole was. But really it's just another way of grouping things. Hopefully we can help him understand so it doesn't seem so difficult! =)

Answer 9

i was talking about @Kainui 's question lmao

Answer 10

LOL...

Answer 11

good job tho :D

Answer 12

I think it's fair to lay it out explicitly with math.

\[\Large 6.02 * 10^{23} \ atoms = 1 \ mole\]
Now we want to convert from atoms to moles. We are given atoms already, \[\Large 6,000,000 \ atoms\]
So to convert, we need to make the unit moles and divide out the atoms, just like we would a number! So we divide from both side and get the number 1. This is the trick. We can multiply anything by 1 and it isn't changed, so that's how conversion factors work. \[\frac{1}{\Large 6.02 * 10^{23}} \ \frac{moles}{atoms} = 1\]
Multiply this by the atoms and we get the atoms cancel since anything divided by itself is 1.\[\Large 6,000,000 \ atoms *\frac{1}{\Large 6.02 * 10^{23}} \ \frac{moles}{atoms}=\] \[\Large \frac{6,000,000 }{\Large 6.02 * 10^{23}} \ moles\]

I hope that makes it intuitive as to what to do, how to do it, and why.

Answer 13

wow awesome job @Kainui !!

Answer 14

Thanks! I don't think the question-asker is even still around but maybe you two got something out of my explanation! =P

Answer 15

Yes, i learned about eggs

Answer 16

Hahahaha XD

Answer 17

Thanx All \(\color{green}{\huge\ddot\smile}\)

Answer 18

@Abhisar even better, how many pairs of shoes are in 40,000,000 shoes? =P

Answer 19

lol ppl

Answer 20

aaammm... i think i would have to look wikipedia for this !! :D

Answer 21

laughing out loud @Kainui