Which of the following solutions have the lowest osmotic pressure and why 1)0 1M NaCl 2) 0 1 - Chemistry - Solutions

Question

Which of the following solutions have the lowest osmotic
pressure and why ?
1)0 1M NaCl 2) 0 1 M glucose 3) 0 1 M
BaCl2

Anuradha Puri · Accepted Answer

Osmotic pressure = iCRT
where,
i 
is van't hoff factor = Number of moles of particles after
dissociation or association / number of particles before
dissociation or association
C is the concentration
R is the gas constant
T is temperature

For equimolar solutions, the solution with minimum number of
particles will have the lowest osmotic pressure
NaCl gives two particles/mol
BaCl2 gives 3 particles/mol
Glucose gives one particle/mol

Hence, osmotic pressure of 0 1 M glucose is lowest

Which of the following solutions have the lowest osmotic pressure and why ? 1)0 1M NaCl 2) 0 1 M glucose 3) 0 1 M BaCl2

Which of the following solutions have the lowest osmotic pressure and why ?
1)0 1M NaCl 2) 0 1 M glucose 3) 0 1 M BaCl₂