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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!!!!

Geoffrey Richards , 14 Years ago
Grade 12
anser 2 Answers
jophin joy

Last Activity: 14 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

Last Activity: 6 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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