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| SidT |
 Posted: Fri Jun 13, 2008 10:10 am Post subject: Molarity |
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Forum Freshman
Joined: 13 Jun 2008
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Location: Sacramento, California
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I am almost in eighth grade, so that should cover up for why I ask such a basic question.
But you see, I have a hard time understanding the concept of molarity. Can anyone please explain it to me? And how do you calculate it?
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| SteveF |
| Posted: Fri Jun 13, 2008 4:04 pm Post subject: |
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Forum Bachelors Degree
Joined: 28 May 2007
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Â
The molarity of a solution is a measure of the concentration of whatever was dissolved in water. To understand molarity you must first understand the mole, which is a unit of quantity or amount.
Let us know if you understand a mole and we can continue to help you understand molarity. For example, how much is half a mole of salt, NaCl? How did you figure it out?
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| Yash |
| Posted: Sat Jun 21, 2008 12:25 am Post subject: |
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Hi !! Sid T
I'll make everything simple for you to understand !!
Molarity is defined as the number of moles of solute dissolved per Volume of Solution in liters, but in case the Volume of Solution is given in milliliter then you multiply it by 1000 So, this is how you define molarity and it's denoted by M
M(molarity)= Number of moles of Solute
.....................Volume of Solution in liters
or M(molarity)=Number of moles of solute X 1000
.......................Volume of Solution in Milliliters
number of moles can be calculated :-
number of moles = amount in grams
....................................Molar Mass
So, i think by now i've made each and everything clear to you !!
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| SidT |
| Posted: Sun Jun 22, 2008 6:49 pm Post subject: |
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Thank you! I always had trouble with it. I know what mole means, but when my parents tried to explain molarity, it always made things more complex than they really were. But now I understand.
Thanks! 
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| Yash |
| Posted: Mon Jun 23, 2008 4:16 am Post subject: |
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No problem, SidT !! Just tell me if you have any doubt regarding other subject in future !!
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| ArezList |
| Posted: Mon Jun 23, 2008 5:43 pm Post subject: |
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Ok then I wonder what's the different between molarity and modality.
Does the molarity means the solute were made into 1L SLUTIOn, but the molality is the solute dessolve in 1L SoLVENT? |
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| Yash |
| Posted: Mon Jun 23, 2008 10:41 pm Post subject: |
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well...Arezlist i would say that molarity is always calculated in Liters, whereas Molality is calculated in grams or Kilograms !!
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| ArezList |
| Posted: Tue Jun 24, 2008 10:03 pm Post subject: |
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well , plaese gives more detail
Does I get the wrong definiation of Molarity and Molality? |
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