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 2 years ago
In 3 moles of ethane calculate the following.
(a) no of moles of C atom.
(b) no of moles of H atom.
(c) no. of molecules of ethane.
 2 years ago
In 3 moles of ethane calculate the following. (a) no of moles of C atom. (b) no of moles of H atom. (c) no. of molecules of ethane.

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hanah
 2 years ago
Best ResponseYou've already chosen the best response.2Answer (i) 1 mole of C2H6 contains 2 moles of carbon atoms. Number of moles of carbon atoms in 3 moles of C2H6 = 2 × 3 = 6 (ii) 1 mole of C2H6 contains 6 moles of hydrogen atoms. Number of moles of carbon atoms in 3 moles of C2H6 = 3 × 6 = 18 (iii) 1 mole of C2H6 contains 6.023 × 10^23 molecules of ethane. Number of molecules in 3 moles of C2H6 = 3 × 6.023 × 10^23 = 18.069 × 10^23

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1have you copy pasted it @hanah ?

hanah
 2 years ago
Best ResponseYou've already chosen the best response.2u have to find mole not atom

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1i know that .. i want for atoms too !

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1http://freeonlinehelpns.blogspot.in/2012/06/inthreemolesofethanec2h6calculate.html

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1i had already checked the link .. only then did i come to open study

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1i didn't understand that .. so can you explain ?

hanah
 2 years ago
Best ResponseYou've already chosen the best response.2its just as simple just multiply 3 as given in your question with the number of mole present in the formula of ethane

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1She is right.. But it seems you are not satisfied or you did not get that ?? Right??

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1See I give you another example so that you get some understanding: See; Let suppose we have Water (already you have too) \(H_2O\) Now tell me how many H and O are there ??

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1does that mean whenever the qn is find the moles i should multiply the given atoms with the number of moles present ? EVERY TIME ?

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1Wait go slow... I explain you everything.. Just tell me what I asked..

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1If you look Atom wise: Then there are two atoms of H and one atom of O Right ??

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1So: For two H. there are 2 mole of H atom For one H there are 1 mole of H atom This is according to the atoms present in \(H_2O\).. Getting ??

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1Okay now moving forward: This is for single \(H_2O\) What if I said : for \(2 H_2O\)

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1Yes.. So 4 moles of H and 2 moles of O..

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1Similarly in your question: you can just understand your question as : \(3(C_2H_4)\) How many C and H are there ??

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1Sorry for \(C_2H_6\)..

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1Yes now you are right.

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1is it just C2H6 OR 3(C2H6)

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1Ethane is just : \(C_2H_6\)

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1But you are given 3 moles of it : 3 Moles of \(C_2H_6\)

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1So you can write it as : \(C_2H_6 + C_2H_6 + C_2H_6 = 3 C_2H_6\)

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1oh okay .. understood .. so any qn like this ..i shud follow the same steps right ?

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1@hanah and @waterineyes thanks :)

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1Yes.. For calculating atoms in the molecule we follow the same steps..

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1Understood ?? c part you can do or not ??

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1can you see that in nana3456 you are still typing something ?

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1or is it just my comp wch makes me see like that ?

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1I am wondering by seeing that..

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1See this site stopped working for me when I was typing that reply.. Ha ha ha.

ashna
 2 years ago
Best ResponseYou've already chosen the best response.1:P .. from the morning you are typing something and i were wondering why you wern't entering it :P

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.1At that time I was replying to Nana and this site did not work properly for me then.. Sorry I could not reply to you..
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