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Percentage Composition

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Question

Find the concentration of glucose in blood which have osmotic pressure $π = 7.7 a t m$ at $T = 25^{o} C$

A

0.31 M

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B

0.45 M

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C

0.56 M

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D

0.89 M

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Solution

The correct option is A $0.31 M$
$π = C R T$
$7.7 = C \times 0.082 \times 298$
$C = \frac{7.7}{24.44} \times 100 = 0.31$

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