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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: faul on June 08, 2019, 08:48:07 PM

Title: Question about the boiling point elevation equation
Post by: faul 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

Title: Re: Question about the boiling point elevation equation
Post by: Borek 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.