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Nikolay [14]
3 years ago
5

What is the osmotic pressure of a solution made by dissolving 60.0 g of glucose, C₆H₁₂O₆, in enough water to form 800.0 mL of so

lution at 45.0 °C ? Express your answer to three significant figures and include the appropriate units.
Chemistry
1 answer:
BlackZzzverrR [31]3 years ago
5 0

Answer:

The osmotic pressure is 10.8 atm

Explanation:

Formula for osmotic pressure is:

π = M . R . T

where M is molarity (mol/L)

R, Universal gas constant (0.082 l.atm/mol.K)

T, T° in K (T°C + 273)

π = M . 0.082 l.atm/mol.K . 318K

Let's calculate the molarity

In 800 mL ____ 60 g

1000 mL _____ 75 g

This is the mass in 1L of solution.

Molar mass glucose = 180.15 g/m

Mass / Molar mass = 75 g/ 180.15 g/m → moles

Moles = 0.416M

π = 0.416 mol/l . 0.082 l.atm/mol.K . 318K

π = 10.8 atm

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The answer for the following problem is mentioned below.

  • <u><em>Therefore the final temperature of the gas is 740 K</em></u>

Explanation:

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P_{2} = final pressure of a gas

T_{1} = initial temperature of a gas

T_{2} = final temperature of a gas

        \frac{1.8}{4} = \frac{333}{T_{2} }

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