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calculate the number of atoms in
(a) 52 moles of He
(b) 52 g of He
(c) 52 u of He
 one year ago
 one year ago
calculate the number of atoms in (a) 52 moles of He (b) 52 g of He (c) 52 u of He
 one year ago
 one year ago

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waterineyesBest ResponseYou've already chosen the best response.2
This site is not properly working for me.. So I did not get your messages...
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
so .. you know to do this ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
1 mole of He = \(6.023 \times 10^{23} \) atoms of He
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
Mention my name here I want to check I am getting notifications or not..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
No I am not getting any..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
I am not able to see my Smart Score too and my username is written in red also no green..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
is it right to carry on ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
Yes you have to just multiply 52 with that Avagadro number.. What do you get on solving ??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
Yes you are right have faith on yourself and carry on I am here to check your mistakes..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
Oh wow playing hide and seek with me @ashna .. Where have you gone ???
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
One thing I want to say that your previous profile pic I like that than your this one..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
b> part hint is : 52 g of He: 1 mole of He = 6.023 * 10^{23} atoms 4 g = 6.023 * 10^{23} atoms Solve it for 52 grams..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
In third part I am not getting what is u there.. 52 u ??
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
@waterineyes lol you joke too
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
some problem with the net .. i said yu that b4 !
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
okay i changed my profile picture .. atleast now come back :P
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
dw:1345202157654:dwdw:1345202309858:dw
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
is u the atomic unit symbol or something ? am not exactly sure about it but in some part of my brain it is registerd like that !
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
water water everywhere nor any drop to drink .. n wen yu are not replayin .. i feel like sayn water water onlyn everytym but does not reply to my question :P
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
a) \(313.04 \times 10^{23}\) atoms b) \(78.299 \times 10^{23}\) atoms.
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
You have calculated them right @ashna Well Done..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
Sorry my internet was creating problem at that time I was not getting any notifications also..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
See @ashna : You know atomic mass of He is 4: So: 1 mole of He = \(6.023 \times 10^{23}\)atoms Or 4g = \(6.023 \times 10^{23}\)atoms Here it is 4g.. Look for g here..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
Now I am explaining the third case that is 52 u.. There it was g(grams) and now it is u.. Helium has atomic mass of 4g. But if you write it as 4u, then it means 1 atom only.. I mean to say that 4u implies \(\color{red}{\text{One Atom of Helium}}\) Where as 4g implies \(\color{blue}{{6.023 \times 10^{23} \text{Atoms of Helium= 1 Mole of Helium..}}}\)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
I give you other example: For Carbon the mass is 12. So: \(\color{green}{12g = 6.023 \times 10^{23} \text{Atoms of Carbon}}\) But: \(\color{magenta}{12u \implies \text{1 Atom of Carbon..}}\)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
\(\color{navy}{\text{For third part now:}}\) \(\color{silver}{\text{Helium has atomic mass of 4..}}\) \(\color{cyan}{\mathcal{So:}}\) \(\color{magenta}{4u \implies \text{1 Atom of Helium..}}\) \(\color{pink}{\text{So,}}\) \(\color{orange}{\mathsf{52 u ~\;will~ \; contain ~\; how ~\; many ~\; atoms ??}}\)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
\(\frak{\color{green}{\text{ashna},\color{blue}{\text{I suggest you to go through all you have studied about Mole Concept..}}}}\) \(\color{red}{\mathsf{Have \;a \;look \; on \; all \; the \;work..}}\) \(\color{green}{\text{How we solved each and every problem just go through once.}}\) \(\color{magenta}{\text{And if you have any doubt then let me know..}}\)
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
okay :) .. n loads of thanks for your help :)
 one year ago
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