September 15, 2019, 06:14:26 AM
Forum Rules: Read This Before Posting


Topic: Question about the boiling point elevation equation  (Read 315 times)

0 Members and 1 Guest are viewing this topic.

Offline faul

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Question about the boiling point elevation equation
« on: June 08, 2019, 08:48:07 PM »
the equation would be

ΔT= Kb . molality . I

I have this problem where im asked to calculate the mass of solute based on that formula, im given T and kb, but to my understanding the units of Kb are °C/molality, which cancels out with the m of the equation, so can't get the mass. Can anyone explain what I'm doing wrong? classic case of teacher not explaining s#*$ so i have to learn in on my own

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 25183
  • Mole Snacks: +1656/-397
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Question about the boiling point elevation equation
« Reply #1 on: June 09, 2019, 03:31:02 AM »
I believe you must be confused about something as nothing cancels out the way you think it does. Can you elaborate and give an example of what you mean?

In general: just solve for molality. It will have correct units once calculated.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Sponsored Links