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Marta_Voda [28]
2 years ago
13

What would be the osmotic pressure at 65 °C of an aqueous solution containing 2.50 g of sucrose (C12H22011) per 205 ml of soluti

on?
Chemistry
1 answer:
dalvyx [7]2 years ago
8 0

The osmotic pressure at 65 °C of an aqueous solution containing 2.50 g of sucrose is 0.988 atm

<h3>How to determine the mole of sucrose </h3>
  • Mass of sucrose = 2.5 g
  • Molar mass of sucrose = 342 g/mol
  • Mole of sucrose =?

Mole = mass /molar mass

Mole of sucrose = 2.5 / 342

Mole of sucrose = 0.0073 mole

<h3>How to determine the molarity of sucrose </h3>
  • Mole of sucrose = 0.0073 mole
  • Volume = 205 mL = 205 / 1000 = 0.205 L

Molarity =?

Molarity = mole / Volume

Molarity of sucrose = 0.0073 / 0.205

Molarity of sucrose = 0.0356 M

<h3>How to determine the osmotic pressure </h3>
  • Molarity (M) = 0.0356 M
  • Temperature (T) = 65 °C = 65 + 273 = 338 K
  • Gas constant (R) = 0.0821 atm.L/Kmol
  • Van't Hoff factor (i) = 1 (sucrose is non-electrolyte)
  • Osmotic pressure (π) =?

π = iMRT

π = 1 × 0.0356 × 0.0821 × 338

π = 0.988 atm

Learn more about Osmotic pressure:

brainly.com/question/5925156

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