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rva.raghav Group Title

Disssolving 120g of urea(mol wt 60)in 1000g of water gave a sol of density 1.15g/ml.the molarity of the solution is ....? please tell me detailed steps.

  • 2 years ago
  • 2 years ago

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  1. rva.raghav Group Title
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    Please tell me soon

    • 2 years ago
  2. Yahoo! Group Title
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    Do u knw wat is Molarity..?

    • 2 years ago
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    \[D=\frac{ M }{ V }\] \[V=\frac{ M }{ D }\] M = 1000 + 120 = 1120gm

    • 2 years ago
  4. rva.raghav Group Title
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    but the answer is 2.05M

    • 2 years ago
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    Lol....First Find V then use Molarity = no of moles of solute / Volume (L)

    • 2 years ago
  6. rva.raghav Group Title
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    how to find V

    • 2 years ago
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    hm..thats wat i have Given u.....)

    • 2 years ago
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    1.15 g/ml = 1150 g/L

    • 2 years ago
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    \[V = 1120/1150 = 0.973L\] no of moles = 120/60 = 2

    • 2 years ago
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    \[M = 2/0.973 = 2.05M\]

    • 2 years ago
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    hope u got it...)

    • 2 years ago
  12. rva.raghav Group Title
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    tks

    • 2 years ago
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    Welcome..)

    • 2 years ago
  14. rva.raghav Group Title
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    yahoo...yahooo......oooooooooooooooo..............

    • 2 years ago
  15. rva.raghav Group Title
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    please wait i have to ask u another question

    • 2 years ago
  16. rva.raghav Group Title
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    Why NPN transistors a more preferred than PNP?

    • 2 years ago
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