English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

But it IS frequently used to determine the molar mass of unknown non-electrolyte compounds!

2007-01-31 02:07:31 · 3 answers · asked by AppleCard! 2 in Science & Mathematics Chemistry

3 answers

because ionic compounds dissociate into ions...so we can use freezing point depression analysis if we know the vant off's factor.....which is abnormal molecular mass/normal molecular mass.....which is "i".......Tb=i*m.....just multiply the vant offs factor and u get the correct answer using freezing point depression analysis.......why it is used for non electrolytes because there is no association or dissociation in non-electrolytes.......

2007-01-31 05:46:49 · answer #1 · answered by Anonymous · 0 0

To test ionic compounds, you'd have to have a liquid like water, which has a small molal freezing point depression constant. You wouldn't see much effect. For nonelectrolytes, you could use a solid like camphor, which has a large molal freezing point depression constant A little goes along way. Also, it's inconvenient to produce and measure temperatures around 0degC. Camphor has a melting point of 176degC, and that's easier to work with.

2007-01-31 02:59:27 · answer #2 · answered by steve_geo1 7 · 1 0

Over the last five years I had begun to have increasingly withdraw into a downward spiral of depression..

But now with the method I can fully focus my energy and thoughts into a decisive line on how to make my life better constantly. And it works like magic! I'm beginning to attract people to me once again and things have just been looking up since then.

Helping you eliminate depression?

2016-05-16 00:29:35 · answer #3 · answered by Anonymous · 0 0

fedest.com, questions and answers