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Q80. A 0.6 % solution of urea (molecular weight 60) would be isotonic with A 0.6% glucose solution B 0.6% KCl solution C 0.1M glucose solution D 0.1M KCl solution How do i find the ans for this problem!!!!


Q80. A 0.6 % solution of urea (molecular weight 60) would be isotonic with











A 0.6% glucose solution











B 0.6% KCl solution











C 0.1M glucose solution











D 0.1M KCl solution


 


How do i find the ans for this problem!!!!

Grade:12

2 Answers

jophin joy
30 Points
10 years ago

here molarity of given data i.e.0.6% solution urea=0.1 M

by d formula M=10x/Mol Wt.       (x=given %)

i.e. 0.6*10/60

now verifiy wid d given options....  0.1 M gulcose is isotonic.

KCl is ionic so it dissociates and 0.6% glucose=0.03 M

 

i hope its correct...:)

Sohan
15 Points
2 years ago
0.6%of urea is .6 gms in 100 ml which is equal to 6 gms in 1000ml  
Hence molarity wuld be 6/60/1 liter  i.e 0.1 M 
Osmotic pressure is directly prop. to conc.
Hence if osmotic pressure are equal their conc shuld be equal therfore it is c 0.1 M glucose soln

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