CBSE Class 12-science Answered
A solution containing 10.2g of glycerin per litre is found to be isotonic with 2% solution of glucose (molar mass = 180 g mol-1). Calculate the molar mass of glycerin.
Asked by Topperlearning User | 20 Jun, 2016, 03:42: PM
Expert Answer
For solution of Glucose pA V= n RT ----- (1)
pA x 0.1L = ( 2/180 )x R x T
For solution of Glycerin pB V= n RT ----- (2)
pB x 1L = ( 10.2/MB )x R x T
pA = pB
( 2/180 )x R x T/ 0.1 = ( 10.2/MB )x R x T/ 1
MB = 91.8 gmol-1
Answered by | 20 Jun, 2016, 05:42: PM
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