Pour solutions A, B, C, D has glucose 0.5 M, NaCl 0.1 M, BaCl 2 0.5 M and MgCl 2 0.1 M, then which of the following will have highest osmotic pressure?

Question

Pour solutions A, B, C, D has glucose 0.5 M, NaCl 0.1 M, BaCl 2 0.5 M and MgCl 2 0.1 M, then which of the following will have highest osmotic pressure? (A) Glucose (B)  BaCl2 (C)  MgCl2 (D)  NaCl

Tardigrade Admin · Accepted Answer

Molar concentration of glucose =0.5 M Molar concentration of NaCl =0.1 M Molar concentration of BaCl2=0.5 M and molar concentration of MgCl2=0.1 M However as NaCl, BaCl2 and MgCl2 is an electrolyte. One mole of NaCl give two mole ions, therefore molar concentration of particles in the solution =0.2 M One mole of BaC l2 give three mole ions, therefore molar concentration of particles in the solution =1.5 M. and one mole of MgCl 2 give three mole ions, therefore molar concentration of particles in solution =0.3 M. As, osmotic pressure is directly proportional to the number of particles in the solution, hence, increasing order of osmotic pressure will be. Glucose < NaCl < MgCl 2< BaCl 2

Q. Pour solutions $A, B, C, D$ has glucose $0.5 M, N a Cl 0.1 M$ , $B a C l_{2} 0.5 M$ and $M g C l_{2} 0.1 M$ , then which of the following will have highest osmotic pressure?

Glucose

$B a C l_{2}$

$M g C l_{2}$

$N a Cl$

Q. Pour solutions A,B,C,D has glucose 0.5M,NaCl0.1M, BaCl2​0.5M and MgCl2​0.1M, then which of the following will have highest osmotic pressure?

Glucose

BaCl2​

MgCl2​

NaCl

Q. Pour solutions $A, B, C, D$ has glucose $0.5 M, N a Cl 0.1 M$ , $B a C l_{2} 0.5 M$ and $M g C l_{2} 0.1 M$ , then which of the following will have highest osmotic pressure?

$B a C l_{2}$

$M g C l_{2}$

$N a Cl$