Question

iii) Starch solution
0:5 is water an element or a compound ? Give reason in support of your
0:005 yn of salt is diysolved in 25 gn of water. Calculate the percentage amount​

Answer 1

Explanation:

The osmotic pressure will be same for both solutions. Both solutions are isotonic.

The osmotic pressure π=iCRT, where i is the vant Hoff factor and C is the molar concentration.

For solution X, i=1 as glucose is non electrolyte and does not dissociate and C=

1L

3mol

=3M

Hence, the osmotic pressure

π=iCRT=1×3×RT=3RT

For solution Y, i=2 as NaCl is strong electrolyte and dissociates into ions and C=

1L

1.5mol

=1.5M

Hence, the osmotic pressure

π=iCRT=2×1.5×RT=3RT

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