First slide

Theory of dilute solutions

Question

A 5% solution of cane sugar (molecular weight = 342) is isotonic with a 1% solution of substance X. The molecular weight of X is

Moderate

A

342
B

171.12
C

68.4
D

136.8

Solution

Isotonic solutions: Same osmotic pressure (i.e., same C_effective and assume c $\approx$ m)
$\frac{5 x 1000}{342 x 100} = \frac{1 x 1000}{m . w t x 100} = 68.4$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App