Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

A 5% solution (by mass) of cane sugar in water has freezing point of 271K. Calculate the freezing point of 5% glucose in water if freezing point of pure

water is 273.15 K.

Chemistry - Main Course Book I

Chapter 2. Solutions



This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
There are 50 gms of glucose in water (1kg).
     Kf = 1.853 deg K  kg/mol

molecular mass of glucose  C6 H12 O6 = 180

depression in freezing point:  1.853 * 50/180 = 0.514 deg K

freezing point:  272.635 deg K
1 5 1
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts