QJEEM14Chef77: JEE Main 2014 Chemistry - Class 12 JEEM14Chef77 Solution: Consider separate solutions of 0.500 M C 2 H 5 OH(aq), 0.100 M…

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QJEEM14Chef77: JEE Main 2014 Chemistry - Class 12 JEEM14Chef77 Solution: Consider separate solutions of 0.500 M C 2 H 5 OH(aq), 0.100 M…

Consider separate solutions of 0.500 M C₂H₅OH(aq), 0.100 M Mg₃(PO₄)₂(aq), 0.250 M KBr(aq) and 0.125 M Na₃PO₄(aq) at 25^oC. Which statement is true about these solutions, assuming all salts to be strong electrolytes?

Multiple Choice Options

A 0.125 M Na3PO4(aq) has the highest osmotic pressure.
B 0.500 M C2H5OH(aq) has the highest osmotic pressure
C They all have the same osmotic pressure
D 0.100 M Mg3(PO4)2(aq) has the highest osmotic pressure.

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Accepted Answer

π = i C R T

^{π} C_{2} H_{3} O H

= 1 \times 0.500 \times R \times T = 0.5 R T

^{π} M g_{3} {(P O_{4})}_{2}

= 5 \times 0.100 \times R \times T

= 0.5 R T

^{π} K B r = 2 \times 0.250 \times R \times T = 0.5 R T

^{π} N a_{3} P O_{4} = 4 \times 0.125 \times R T = 0.5 R T

Since the osmotic pressure of all the given solutions is equal.

Hence all are isotonic solution.

QJEEM14Chef77: JEE Main 2014 Chemistry - Class 12 JEEM14Chef77 Solution: Consider separate solutions of 0.500 M C 2 H 5 OH(aq), 0.100 M…

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