Consider separate solution 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 solution, assuming all salts to be strong electrolytes?

Question

Consider separate solution 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 solution, assuming all salts to be strong electrolytes? (A) They all have the same osmotic pressure (B) 0.100 M Mg3 (PO4 )2(aq) has the highest osmotic pressure (C) 0.125 M Na3PO4(aq) has the highest osmotic pressure (D) 0.500 M C2H5OH (aq) has the highest osmotic pressure

Tardigrade Admin · Accepted Answer

π= i CRT π C 2 H 5 OH =1 × 0.500 × R × T =0.5 RT π Mg 3( PO 4)2=5 × 0.100 × R × T =0.5 RT π KBr =2 × 0.250 × R × T =0.5 RT π Na 3 PO 4=4 × 0.125 × RT =0.5 RT

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

They all have the same osmotic pressure

$0.100 M M g_{3} (P O_{4})_{2}$ $_{(a q)}$ has the highest osmotic pressure

$0.125 M N a_{3} P O_{4}$ $_{(a q)}$ has the highest osmotic pressure

$0.500 M C_{2} H_{5} O H$ $_{(a q)}$ has the highest osmotic pressure

$π = i CRT$

$π_{C_{2} H_{5} O H} = 1 \times 0.500 \times R \times T = 0.5 RT$

$π_{M g_{3} (P O_{4})_{2}} = 5 \times 0.100 \times R \times T = 0.5 RT$

$π_{K B r} = 2 \times 0.250 \times R \times T = 0.5 RT$

$π_{N a_{3} P O_{4}} = 4 \times 0.125 \times RT = 0.5 RT$

Q. Consider separate solution of 0.500MC2​H5​OH(aq)​,0.100MMg3​(PO4​)2​(aq),0.250MKBr(aq)​ and 0.125MNa3​PO4​(aq)​ at 25∘C. Which statement is true about these solution, assuming all salts to be strong electrolytes?

They all have the same osmotic pressure

0.100MMg3​(PO4​)2​(aq)​ has the highest osmotic pressure

0.125MNa3​PO4​(aq)​ has the highest osmotic pressure

0.500MC2​H5​OH (aq)​ has the highest osmotic pressure

π=iCRT πC2​H5​OH​=1×0.500×R×T=0.5RT πMg3​(PO4​)2​​=5×0.100×R×T=0.5RT πKBr​=2×0.250×R×T=0.5RT πNa3​PO4​​=4×0.125×RT=0.5RT

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

$0.100 M M g_{3} (P O_{4})_{2}$ $_{(a q)}$ has the highest osmotic pressure

$0.125 M N a_{3} P O_{4}$ $_{(a q)}$ has the highest osmotic pressure

$0.500 M C_{2} H_{5} O H$ $_{(a q)}$ has the highest osmotic pressure

$π = i CRT$

$π_{C_{2} H_{5} O H} = 1 \times 0.500 \times R \times T = 0.5 RT$

$π_{M g_{3} (P O_{4})_{2}} = 5 \times 0.100 \times R \times T = 0.5 RT$

$π_{K B r} = 2 \times 0.250 \times R \times T = 0.5 RT$

$π_{N a_{3} P O_{4}} = 4 \times 0.125 \times RT = 0.5 RT$