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mayankdevnani
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Can someone help me out.
**BECOME FAN**
**GIVE MEDALS**
Q) Can someone tell me briefly account on MOLES.
 2 years ago
 2 years ago
mayankdevnani Group Title
Can someone help me out. **BECOME FAN** **GIVE MEDALS** Q) Can someone tell me briefly account on MOLES.
 2 years ago
 2 years ago

This Question is Closed

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
@.Sam. @phi @cwrw238 @radar @sara12345 @sauravshakya @surdawi @hba
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
@myko @amriju @Agent_Sniffles @mahmit2012 @him1618 @timo86m
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
plz help me
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
mole is just a counting number. like, dozen = 12, mole = some number
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
yaa then
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
like some examples
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
thats the concept. to count small particles in relation to mass, we use moles in chemistry
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
do u have any specific question
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
il have to think of an example...
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
no but i don't understand the formula of mole
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
forget about the formula. therez no formula. mole is not a theory. its just a number, so we use the number in conversions.
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
u wud be okay with mole, if u are familiar with dimensional analysis
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
n(mole)=atomic weight/molar mass
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
ok do u knw below two things : 1) atomic mass 2) molar mass
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
could u tell me what they are
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
atomic mass means the atomic mass (ma) is the mass of a specific isotope, most often expressed in unified atomic mass units
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
the molar mass M is a physical property. It is defined as the mass of a given substance
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
right @sara12345
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
@sauravshakya
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
partially correct.
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
so whats that
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
in periodic table, the mass of each element is shown in unit amu, relative to carbon right ?
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
@sirm3d
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
right
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
dw:1351767227333:dw
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
N has a mass of 14 amu, Also, if u take one mole of N atoms, they would weigh 14 grams.
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
thats the relation between 'mole and grams'
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
ok then
 2 years ago

myko Group TitleBest ResponseYou've already chosen the best response.0
mol is just a number 6.02214179×10^23
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
u need to know whats a mole rite....well...in a part of chemistry called physical chemistry...u need to calculate mass volume etc of chemical substances....for that....to measure the number of molecules atoms etc of the compound in a given sample...we use the term moles....it gives us the number of atoms or molecules..in the given amount of specimen....it accualy is 6.023* \[10^{23}\] units....just as a dozen means 12 units...so one mole of money means...6.023*10^23 rupess...
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
so u can use the ratio \(\frac{1 mol}{atomic\ mass}\) in your conversions
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
to converst between \(mol \) and \(grams\)
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
what is the formula of mole
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
a mole describes a fixed number of similar atoms or molecules a dozen means 12, a mole of nitrogen gas means 6.022x10^23 molecules of nitrogen gas
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
yaa i know but what's the formula of mole
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
1 mole = 6.022x10^23
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
now the mole is very special....since all that atomic weight u see is the weight of one mole of an atom in grams....same for moleclar wt.....also....for any gas..one mole of the gas occupies a volume of 22.4 litres at STP....so now u know that moles=Mass of the given specimen/ mol or atomic masss ( accordingly if its a molecule or an atom that the specimen is made of)
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
no how can we derive it
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
yaa thats what i have
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
@amriju can you give me examples of mole
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
lets work out the example/question u had asked before, whats that ?
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
lets say u have 200 grams of NaCl...can u find out the number of moles..?
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
lets not go to the compound level in the starting itself
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
lets take an example which involves element only
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
Na=23g and Cl=35.5g
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
correct.....so NaCl has a molecular mass of.?
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
ok great u seem to be having some idea of things already :)
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
200/58.5 moles
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
yooooooooooo
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
approx.
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
another some dificult
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
now find the number of moles of sodium ions in it....
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
not so much difficult
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
ok...so wats the answer..?
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
23 of \[Na^+\]
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
right?
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
number of moles of Na+
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
23g of Na+
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
thats the weight of Na+...i want the numbr of moles of it
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
sorry.. i don't know
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
did u get the question
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
question is this : find number of moles of Na+ in 2000 grams of NaCl
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
how can you identify question @sara12345
 2 years ago

sirm3d Group TitleBest ResponseYou've already chosen the best response.0
the number of moles of Na+ is the same as the number of moles of NaCl, which is 2000/58.5 moles
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
ok....u found the number of moles of nacl...k?..lets hav another ques...find the number of Na+ ions in a dozen of NaCl molecules
 2 years ago

rduncan16 Group TitleBest ResponseYou've already chosen the best response.0
did i barge in
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
@mayankdevnani answer my ques...
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
yaa you can @rduncan16
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
wait....
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
i don't get answer @amriju help me!!!!
 2 years ago

rduncan16 Group TitleBest ResponseYou've already chosen the best response.0
cuz i can give u the actuial formulia
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
yaa you can
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
how many Na+ atoms r there in 1 nacl molecule....nacl=na+ +cl.....
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
so its 58.5g
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
@amriju @sara12345
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
@UnkleRhaukus
 2 years ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
hmm, whats the question, something about a mole?
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
how many Na+ atoms r there in 1 nacl molecule
 2 years ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
the NaCl molecule has one sodium atom and one chlorine atom only
 2 years ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
one mole of NaCl has 6x10^23 molecules, so in one mole of NaCl there will be 6x10^23 sodiums and 6x10^23 chlorines
 2 years ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
easy ?
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
no so whats the answer
 2 years ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
the H_2O molecule has two hydrogen atoms and one oxygen atom one mole of H_2O has 6x10^23 molecules, so in one mole of H_2O there will be 12x10^23 Hydrogens and 6x10^23 Oxygens
 2 years ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
what was your question exactly?
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
how many Na+ atoms r there in 1 nacl molecule
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
friend, precicely this is the reason, i hinted u to take an example that contains only elements
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
when we are studying the concept of mole, it makes no sense to deal with compounds.
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
compounds wil come much later
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
this is the logical order we study things in chemistry : 1) atoms models 2) compounds 3) reactions
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
mol concept is very basic, we learn it along with atomic mass and molar mass, in first module, atomsmodels
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
once we get confident with atoms, mole conversions to grams and number of atoms, fully, we move to next module compounds.
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
sorry... meet tomorrow... thnx...for coming ....will be right back ...i tag you
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
NaCl is an ionic compound, which will not make sense to u, when we r living in module 1
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
ok @UnkleRhaukus @sara12345 @amriju @thivitaa
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
ok, mean while try to work this simple q : whats the mass of 2.35 moles of carbon ?
 2 years ago

UnkleRhaukus Group TitleBest ResponseYou've already chosen the best response.0
we know 12 g of carbon is a mole
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
you could use that
 2 years ago

sara12345 Group TitleBest ResponseYou've already chosen the best response.0
and another example : how many moles are in 100 grams of carbon ?
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
@amriju plz ask any question
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
plz @amriju for practise
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
i cant help u here...bring me ques..i can help...but i cant really form tough ques...:(
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
no... ask any question pklzz
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
@amriju
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
k....water was poured on sulphuric acid....making the temperature of the flask around 300 degrees and causing 25 percent of acid to vaporise...if the volume of the acid in gaseous state was x cc find 1) the number of moles of acid..2) total weight of the acid before water was poured
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
this is a pretty tough ques...
 2 years ago

mayankdevnani Group TitleBest ResponseYou've already chosen the best response.1
yaa well try this...isme kya bura hai
 2 years ago

amriju Group TitleBest ResponseYou've already chosen the best response.1
tumne charles nd boyles law kr liye ho..?
 2 years ago
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