How many moles of particles are formed by dissolving one mole of each of the following in water? Sucrose mole(s) of particles
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Explanation:
1 mole of a pure substance contains NA particles, or 6.022 × 1023 particles.
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1 + 1 = 2 moles of He atoms.
= Avogadro number + Avogadro number = 2 × Avogadro number of He atoms.
= NA + NA = 2 × NA He atoms.
= (6.022 × 1023) + (6.022 × 1023) = 2 × (6.022 × 1023) He atoms.
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Osmotic pressure is a colligative property which depends upon the number of moles of solute present in the solution.
Π=iCRT
NaCl, when dissolved in water, gives 2 moles of ions ( Na
+
and Cl
−
) on dissociation, as one mole of NaCl is dissolved.
NaCl⟶Na
+
+Cl
−
i=2
But urea and glucose do not ionise. They are non-electrolytes. So, the Van't Hoff factor of both urea and glucose will be i=1.
Therefore, equal osmotic pressure will be produced by the solution of urea and glucose only.
I am not sure for the question
Π=iCRT
NaCl, when dissolved in water, gives 2 moles of ions ( Na
+
and Cl
−
) on dissociation, as one mole of NaCl is dissolved.
NaCl⟶Na
+
+Cl
−
i=2
But urea and glucose do not ionise. They are non-electrolytes. So, the Van't Hoff factor of both urea and glucose will be i=1.
Therefore, equal osmotic pressure will be produced by the solution of urea and glucose only.
I am not sure for the question
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