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waterineyesBest ResponseYou've already chosen the best response.1
I am in a doubt from where should I start.. Firstly tell me what you know about Mole concept till now?? Don't worry just tell me what you know about this ??
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
to be frank i dont know anything , this is my new chapter . the teacher taught something but nothing did enter my brain , my only hope is you now , teach my like how yu teach first grader .. please , having my test this wednesday !
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Ha ha ha.. I don't know nothing about it.. but don't worry I will give you what I know about this..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
See, to measure any quantity you will need a suitable measure for it.. Right??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Say for example: You have 12 bananas.. So for simplicity or measuring it you say it is 1 dozen. 12 bananas = 1 Dozen So, here you have measured 12 bananas by saying 1 Dozen of bananas.. Getting ??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Now you know in even a small substance or quantity, there are very large number of atoms and molecules.. These atoms and molecules are very small so in even in a very small quantity they are present in very large amount.. Getting this ??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
So, here If I want to measure these atoms and molecules I need a suitable measure for it too so that I can measure or define these large numbers of atoms or molecules with ease.. So for that we need Mole Concept.. Got this??
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
yea .. thanks water , you dont teach lyk how my teache did :D
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Insulting me?? Ha ha ha.. Never mind..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Wanna proceed further ??
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
hey am nt insulting ,i meant to say you were teaching very wel and nothing like how my teacher did .. of course .. please proceed !
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
I was just kidding @ashna
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
You should remember this : Basically, we use idea of mole or Mole concept to count at the Microscopic Level.. By Microscopic Level, we mean very small particles like atoms, molecules, electrons, ions etc.. These are counted in Microscopic Levels. Getting the wordings here ??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
*to count entities..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
So now we will define What Mole is..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
This is the book definition of Mole.. you can check in your book..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
one mole = 6.023 * 10^23 molecules ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Yes but its the value.. I am talking about definition..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
\(\color{blue}{\text{Mole}}:\) One Mole is the amount of a Substance that contains as many particles (entities) as there are atoms in exactly \(12 \;grams \) of the \(^{12}C\) isotope.
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
This is book definition.. I explain you best to my knowledge..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
There \(C\) is Carbon..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
@ashna , do you know for measuring any quantity we keep some standards for measuring any quantity..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Close to it.. I explain you.. For mass it is kg.. But we should make some standards which will define what kg is.. We first make standards for kg so that we can say this much amount is kg.. So that whole world can follow the same..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
That is called Standardization of something. For length it is meters of course.. but we will standardize the meter.. Suppose this will create problem if I say 100cm is 1 meter and you will say no 200 cm is 1 meter.. In that case we will fight.. Right ??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
So to standardize the Mole we measure all the atoms in 12 grams of Carbon and the result we got from that we call it as one mole..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Now we will find its value and define Avagadro's Number.. Heard the name ??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
I am just telling you but if you want then you can leave it too: By using a device called "Mass Spectrometer" (used to find Mass) physicists calculate the MASS OF ONE ATOM OF CARBON (\(^{12}C\)) to be: \[\large 1.992648 \times 10^{23} \; g\]
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Do you know the Atomic Mass of Carbon ??
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
oh .. never heard of that , ty :)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
So we calculate the value of mole by using: \[Number \; \; of \; \; Atoms = \frac{Mass}{Mass \; of \; One \; Atom}\]
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
You can say 1 Mole also in place of Number Of Atoms.. \[\large 1 \; Mole = \frac{12}{1.992648 \times 10^{23}}\]
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
You can say 1 Mole also in place of Number Of Atoms.. \[\large 1 \; Mole = \frac{12}{1.992648 \times 10^{23}}\] \[\large 1 Mole = 6.023 \times 10^{23}\]
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
okay .. can you tell me the difference between mole and molecules ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Mole is a measuring quantity.. Molecule is like formed by atoms.. \[O_2\] this is molecule.
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
This is called Oxygen Molecule..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Actually mole will contains molecules. Suppose 1 mole will contains 6.023*10^{23} molecules of Oxygen..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
so you mean 1 C and 1 O contains same number of molecules ? or is it the same for all elements ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Just similar to : 1 Dozen will contain 12 Bananas. 1 Mole will contain 6.023*10^{23} molecules..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Yes coming to your question right now..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
See if you are talking about atoms then 6.023*10^{23} atoms.. If you are talking about molecules then 6.023*10^{23} molecules.. I give you example have patience..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
1 Mole of Hydrogen Atoms = \(6.023 \times 10^{23}\) hydrogen atoms. 1 Mole of Water Molecules = \(6.023 \times 10^{23}\) water molecules..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
1 Mole of Carbon Atoms = \(6.023 \times 10^{23}\) Carbon atoms. 1 Mole of Oxygen Atoms = \(6.023 \times 10^{23}\) Oxygen atoms..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
yeah .. now i can understand :)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Coming to Avagadro's Number..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
1 Mol is given other name as "Avagadro's Constant" So: \(6.023 \times 10^{23}\) is the value for :Avagadro's Constant".. Avagadro's Constant is denoted by \(N_A\); So: \[N_A = 6.023 \times 10^{23}\]
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Is this tough?? Ha ha ha
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
you got brains .. and my brains have just started developing .. that too after entering into open study !
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
No I did not mean that @ashna ..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
i dont like chem , phy or math .. am only into literature !
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
oh god .. am not making you feel or anything .. am just talking naturally .. am sorry if you felt for it !
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Literature?? Great.. Here Literature section is also there. You can spend your time there also..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
It is denotion for Avagadro's constant..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
I mean you can represent Avagadro's Number or constant as: \[Avagadro's \; Constant = N_A = 1 Mole = 6.023 \times 10^{23}\]
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
okay .. and may i know if it is 10^22 or 10^23 or both ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Not both: only 23..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
I am using 23 everywhere..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
\[\huge 1 Mole = 6.023 \times 10^{23}\]
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
scroll up and see what you wrote for avagadros constant 1
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
1 Mol is given other name as "Avagadro's Constant" So: \(6.023 \times 10^{23}\) is the value for :Avagadro's Constant".. Avagadro's Constant is denoted by \(N_A\); So: \(N_A=6.023×10^{23}\) Here ??
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
is it 22 for avagadro's constant ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Where I have written 22 then ??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
It has the same values as 1 Mole has...
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
*10^23 ? is what you have written ?
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
looks like 22 to me .. its okay , next week ll hav eye check up .. you continue :)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Yes.. Right click on that then select Show Math As and then text commands if you want to confirm..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
its okay .. i trust you ;)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
What I can explain more in this ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Do you know about Molar Mass ??
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
teach me how to do the sums !
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Ha ha ha... My weakest part..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Do you know what is molar mass ??
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
some problem with my net connection .. that's why i seemed offline sorry !
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
See @ashna I am helping you and I had studied these 5 years ago I am not good at these but I am seeing what I can do this for you in this. Don't say sorry it is okay..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
And we have other members too so don't worry we are on safe side..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
okay .. but i prefer you .. u've been the one who has been helping me from the begining in OS !
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Molar Mass is: See once you have found 1 Mole of any substance then Mass of that 1 Mole of substance in grams in called Molar Mass..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
okay .. partly understood .. examples in stock ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
This is my wording not according to the book: According to the book definition: Molar Mass: The Mass of one Mole of a substance in grams is called Molar Mass.. I give you example..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Can you tell me molecular mass of Water ??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
\(H_2O = 2 \times 1 + 16 = 18 \)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
there are two H: H has mass equal to 1. So 2 H's will have 2 there is one O: oxygen has 16 as its mass: 16 2 + 16 = 18 Have you studied about molecular mass ?/
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
if this is called molecular mass.. then yes , some basics in my 8th !
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
am not sure with the names !
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Remember : This is called Molecular Mass..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
you ask me the molecular mass of something.. let me try !
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Then Molar Mass is simple just very simple: Molar Mass = 18 grams..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
oh .. just write it in terms of g ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Find the molecular mass of Sodium Chloride (Salt). Do you know symbolically what is it ??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Yes can you find its molecular mass ?/
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
I am attaching here some flash file hope you will like it..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
atomic mass of Na is 23 atomic mass of Cl is 35.5 add them both ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
I will send you by other means it will take time to upload here.. Yes add them both..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Can you give me the question on mole concept so that I can explain you how to do it.. I am unable in finding it..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Wait. This has gone long. Start a new post..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
I mean to say that can we start a new post @ashna
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Medal for finding molecular mass of NaCl..
 one year ago
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