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Standard XII

Chemistry

Osmotic Pressure

The average o...

Question

The average osmotic pressure of human blood is $7.8$ bar at $37^{o} C$ . What is the concentration of an aqueous $N a C l$ solution that could be used in blood stream?

0.15

mol/L

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0.30

mol/L

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0.45

mol/L

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0.60

mol/L

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Solution

The correct option is C $0.15$ mol/L
Solution :- Option A is correct
Nacl should lie isotonic with
blood
$π_{b l o o d} = C_{N a c l} R T \times i$
$7.8 = C \times 0.0821 \times 310 \times 2$
$C = 0.153 m o l e^{- 1}$
The concentration of on
aqueous Nacl solution that
is used in blood stream
is 0.15 mol/L

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The average osmotic pressure of human blood is 7.8 bar at 37oC. What is the concentration of an aqueous NaCl solution that could be used in blood stream?

The correct option is C 0.15 mol/LSolution :- Option A is correctNacl should lie isotonic withbloodπblood=CNaclRT×i7.8=C×0.0821×310×2C=0.153mole−1The concentration of onaqueous Nacl solution thatis used in blood streamis 0.15 mol/L

The average osmotic pressure of human blood is $7.8$ bar at $37^{o} C$ . What is the concentration of an aqueous $N a C l$ solution that could be used in blood stream?