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Dissolving 120 g120 g of urea (molecular weight = 60 g) in 1000 g of water gave a solution of density 1.15 g/m. The molarity of the solution is
  • a)
    1.78 M
  • b)
    2.00 M
  • c)
    2.22 M
  • d)
    2.05 M
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Dissolving 120 g120 g of urea (molecular weight = 60 g) in 1000 g of ...


Calculation of Molarity

1. First, calculate the volume of the solution:
Density = mass/volume
Volume = mass/density = 1000 g / 1.15 g/mL = 869.57 mL

2. Next, calculate the number of moles of urea in 120 g:
Number of moles = mass/molecular weight = 120 g / 60 g/mol = 2 moles

3. Finally, calculate the molarity of the solution:
Molarity = moles of solute/volume of solution (in liters)
Molarity = 2 moles / 0.86957 L = 2.05 M

Therefore, the molarity of the solution is 2.05 M.
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Dissolving 120 g120 g of urea (molecular weight = 60 g) in 1000 g of ...
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Dissolving 120 g120 g of urea (molecular weight = 60 g) in 1000 g of water gave a solution of density 1.15 g/m. The molarity of the solution isa)1.78 Mb)2.00 Mc)2.22 Md)2.05 MCorrect answer is option 'D'. Can you explain this answer?
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Dissolving 120 g120 g of urea (molecular weight = 60 g) in 1000 g of water gave a solution of density 1.15 g/m. The molarity of the solution isa)1.78 Mb)2.00 Mc)2.22 Md)2.05 MCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Dissolving 120 g120 g of urea (molecular weight = 60 g) in 1000 g of water gave a solution of density 1.15 g/m. The molarity of the solution isa)1.78 Mb)2.00 Mc)2.22 Md)2.05 MCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Dissolving 120 g120 g of urea (molecular weight = 60 g) in 1000 g of water gave a solution of density 1.15 g/m. The molarity of the solution isa)1.78 Mb)2.00 Mc)2.22 Md)2.05 MCorrect answer is option 'D'. Can you explain this answer?.
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