When 2 moles of KF are placed in one liter of water, what happens to the boiling point?
a. it decrease by 3.72 degree Celsius b. it decreases by 7.44 degrees Celsius c. it increases by 2.08 degrees Celsius d. it increases by 1.04 degrees Celsius
The answer is C but I don't know how to actually solve it... Please help.

Question

When 2 moles of KF are placed in one liter of water, what happens to the boiling point?
a. it decrease by 3.72 degree Celsius b. it decreases by 7.44 degrees Celsius c. it increases by 2.08 degrees Celsius d. it increases by 1.04 degrees Celsius 
The answer is C but I don't know how to actually solve it... Please help.

aaronq · Answer

use the formula: $\Delta T=i*m*K_{\theta}$ where, $\theta=b$ when finding BP, and $\theta=f$ when finding freezing point (By that i mean use the appropriate constant.) More on this: http://openstudy.com/study#/updates/521ecb3ae4b0750826e0c362

anonymous · Answer

@aarong I am very lost on this subject....

eric_d · Answer

@abb0t

eric_d · Answer

I think.. v got to find 'i' first
frm KF

anonymous · Answer

Ok what formula is this and what's I supposed to be?

anonymous · Answer

@matt101 please can you help?

eric_d · Answer

KF

eric_d · Answer

|dw:1402460208896:dw|