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5% solution of Cane sugar is isotonic with 0.877 % solution of Urea. calculate the molecular mass of Urea if the molecular mass of Cane sugar is 342? 1]29.98 2] 59.98 3] 49.98 4] 39.98?
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5% solution of Cane sugar is isotonic with 0.877 % solution of Urea. c...
Answer:

Given:

Molecular mass of cane sugar = 342

5% solution of cane sugar is isotonic with 0.877% solution of urea.

Formula:

Isotonic solution means both solutions have the same osmotic pressure.

Osmotic pressure = (Molarity of solute) x (Gas constant) x (Absolute temperature)

Molarity of solute = (Number of moles of solute) / (Volume of solution in liters)

Calculation:

Let's assume the volume of both solutions is 1 liter.

5% solution of cane sugar means there are 5/100 x 1000 = 50 grams of cane sugar in 1 liter of solution.

Molarity of cane sugar = (50 / 342) moles / 1 L = 0.146 moles / L

0.877% solution of urea means there are 0.877/100 x 1000 = 8.77 grams of urea in 1 liter of solution.

Molarity of urea = (8.77 / molecular mass of urea) moles / 1 L

Since both solutions are isotonic, their osmotic pressures are the same.

Osmotic pressure of cane sugar = Osmotic pressure of urea

(Molarity of cane sugar) x (Gas constant) x (Absolute temperature) = (Molarity of urea) x (Gas constant) x (Absolute temperature)

0.146 x R x T = (8.77 / molecular mass of urea) x R x T

0.146 x molecular mass of urea = 8.77

Molecular mass of urea = 8.77 / 0.146 = 59.98

Therefore, the molecular mass of urea is 59.98.

The correct option is 2) 59.98.
Community Answer
5% solution of Cane sugar is isotonic with 0.877 % solution of Urea. c...
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5% solution of Cane sugar is isotonic with 0.877 % solution of Urea. calculate the molecular mass of Urea if the molecular mass of Cane sugar is 342? 1]29.98 2] 59.98 3] 49.98 4] 39.98?
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5% solution of Cane sugar is isotonic with 0.877 % solution of Urea. calculate the molecular mass of Urea if the molecular mass of Cane sugar is 342? 1]29.98 2] 59.98 3] 49.98 4] 39.98? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about 5% solution of Cane sugar is isotonic with 0.877 % solution of Urea. calculate the molecular mass of Urea if the molecular mass of Cane sugar is 342? 1]29.98 2] 59.98 3] 49.98 4] 39.98? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 5% solution of Cane sugar is isotonic with 0.877 % solution of Urea. calculate the molecular mass of Urea if the molecular mass of Cane sugar is 342? 1]29.98 2] 59.98 3] 49.98 4] 39.98?.
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