Consider separate solutions of 0-500 M C 2 H 5 OH aq - 0-100 M Mg 3 P O 42 aq- 0-250 M KBr aq and 0-125 M N a 3 P O 4 aq at 25- C- Whichstatement is true about these solutions- assuming all salts to be strong electrolytes-A- They all have the same osmotic pressure-B- 0-125 MN a 2 P O 4 aq has the highest osmotic pressure-C- 0-500 MC 2 H 5 OH has the highest osmotic pressureD- 0-100 MMg 3 P O 42 aq has the highest osmotic pressure-

The correct option is A They all have the same osmotic pressure.For C_2H_5OH, π = 1 × 0.5 × RT = 0.5 RT For KBr, π = 2 × 0.25 × RT = 0.5 RT For Mg_3(PO_4)_2, π ...

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Byju's Answer

Standard XII

Chemistry

Stoichiometric Calculations

Consider sepa...

Question

Consider separate solutions of 0.500 M $C_{2} H_{5} O H (a q)$ , 0.100 M $M g_{3} (P O_{4})_{2}$ (aq), 0.250 M KBr(aq) and 0.125 M $N a_{3} P O_{4}$ (aq) at $25^{\circ} C$ . Which statement is true about these solutions, assuming all salts to be strong electrolytes?

0.125 M N a_{2} P O_{4}

(aq) has the highest osmotic pressure.

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0.500 M C_{2} H_{5} O H

has the highest osmotic pressure

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They all have the same osmotic pressure.

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0.100 M M g_{3} (P O_{4})_{2}

(aq) has the highest osmotic pressure.

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Solution

The correct option is C They all have the same osmotic pressure.
For $C_{2} H_{5} O H, π = 1 \times 0.5 \times R T = 0.5 R T$
For $K B r, π = 2 \times 0.25 \times R T = 0.5 R T$
For $M g_{3} (P O_{4})_{2}, π = 5 \times 0.1 \times R T = 0.5 R T$
For $N a_{3} P O_{4}, π = 4 \times 0.125 \times R T = 0.5 R T$
So, all are isotonic solutions.

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Similar questions

Q. Consider separate solution of

0.500 M C_{2} H_{5} O H (a q), 0.100 M M g_{3} (P O_{4})_{2} (a q), 0250 M K B r (a q) a n d 0.125 M N a_{3} P O_{4} (a q) a t 25^{\circ} C

. Which statement is true about these solutions, assuming all salts to be strong electrolytes?

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Which of the following solutions has highest osmotic pressure?

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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∘C. Which statement is true about these solutions, assuming all salts to be strong electrolytes?

The correct option is C They all have the same osmotic pressure.For C2H5OH,π=1×0.5×RT=0.5RT For KBr,π=2×0.25×RT=0.5RT For Mg3(PO4)2,π=5×0.1×RT=0.5RT For Na3PO4,π=4×0.125×RT=0.5RT So, all are isotonic solutions.

Consider separate solutions of 0.500 M $C_{2} H_{5} O H (a q)$ , 0.100 M $M g_{3} (P O_{4})_{2}$ (aq), 0.250 M KBr(aq) and 0.125 M $N a_{3} P O_{4}$ (aq) at $25^{\circ} C$ . Which statement is true about these solutions, assuming all salts to be strong electrolytes?