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waterineyes Group TitleBest ResponseYou've already chosen the best response.1
See there your question is given like: 2g of a Substance is added to water... Can you tell me what is solute here and what is the solvent here ??
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.1
solvent is water and solute is that 2g substance .. correct ?
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
For finding molarity you need number of moles solute.. How will you find number of moles of solute because it is given in 2 grams.. ??
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.1
i dont know !
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
For that there is a formula you will use that..
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.1
ah .. that previous one ?
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.1
derived from molarity .. ?
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
\[Number \; Of \; Moles = \frac{Grams \; Present}{Molecular \; Mass \; Of \; that \; Substance}\]
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
No no that one.. This one I have written above now..
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.1
how many formulas are there in this chapter ?
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Now let us try to implement this formula on a question so that you can understand it properly. There are as many formulas as there are hairs on your head.. Ha ha ha..
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.1
what if am bald ?? :P
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Wait for one second my mummy is calling me.. Have a look on that formula and try to memorize it and understand it as well..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Then there are as many formulas as there are hairs on my head And I don't like to be bald..
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.1
am not bald either .. i were just kidding :)
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.1
dw:1345436660852:dw
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Mention me when you will come.. I am in Mathematics Section..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
I have to go ashna...
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
So let us hurry up I can explain you this thing..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
See you are given with question like this: 2g of a NaCl is dissolved in 4 L of water.. Find the Molarity..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Hurry up find the molecular mass of NaCl first..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Because you have to find Number of Moles first..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
so it is 58.5..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Now 2g you are given with.. Can you find number of moles now ??
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Yep solve it hurry up..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Now can you find molarity by using its formula ??
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
For that you need volume of solution too..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
For that you need volume of solution too..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
I don't know.. Ha ha ha..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Yes we can ashna..
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.1
okay .. you leave then !
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
For that you should know the density of water.. It will be given to you.. I think approximately density of water is 1.. So: \[Density = \frac{Mass}{Volume}\]
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Oh god what I am doing.. We have to find volume of NaCl not water..
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.1
you better leave water ..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Yeah but I will explain you after coming for sure.. May be till then others may help you.. Or I think I have written the question wrong...
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
But the main concept is you got how to find number of moles of solute when it is not given.. Right ??
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
It did increase some knowledge of yours. Okay now I have to leave.. There is work for me from my neighborers.. So I have to go now..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Bye take care as well..
 2 years ago
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