i have a report due for distilation and i am doing an experiment, ditilling
H2O (WATER) NaCl (salt)
OH (alchhol) + H2O (water)
OH + NaCl
I wanted to know the equation for these since i need to type in the equation in the report.
THANKSSSS A LOTTT FOR THOSE WHO HELP ME OUT
2006-12-29 10:05:38 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
There is no chemical equation for distillation as it separates compounds which have been mixed and does not change them.
2006-12-29 10:11:43 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I think that you are asking three questions. In the first question, you want to distill salt water. No problem. The distillate (liquid coming over) is water. Salt is left behind. Salt does not boil.
In the third question, same difference. You collect ethanol as distillate.
The second question is your problem. Ethyl alcohol and water form what is called an azeotrope, a constant boiling mixture, which boils at a lower temperature than either water or alcohol. This azeotrope boils at about 70degC, and consists of a mixture of 95% alcohol and 5% water. Because the azeotrope boils lower than water or ethanol, it keeps coming over.
So you do not need an equation, but rather you need a phase diagram for the ethanol/water system.
2006-12-29 18:29:04 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋
C2H5OH(aq) ---> C2H5OH (l)
for alcohol since it will truly "distill". You will find though that the alcohol will only distill to about 95% OH/5% H2O. It makes an azeotrope and cannot be further separated. The distillation of salt and water does not have a normal eqn:
NaCl (aq) ---> NaCl(s) will express what is happening to the salt as your evaporate the water.
2006-12-29 18:15:03 · answer #3 · answered by serf_tide 4 · 0⤊ 0⤋
do you mean dissociation?
NaCl -> Na (+) + Cl (-)
OH (-) is not an alcohol, it is a hydroxide ion, but as a functional group in an organic compound it may be considered an alcohol.
I don't think there is an equation you can write for distillation -- it's a physical process that entails boiling, not a chemical reaction.
2006-12-29 18:10:27 · answer #4 · answered by Shanny 2 · 0⤊ 0⤋
there is no equation for it. there is no reaction simply a seperation. It is a process, try something lie H2O(l liquid) + NaCl (l) ==> H2O(g gas) + NaCl(s solid)
2006-12-29 18:11:42 · answer #5 · answered by bunja2 3 · 0⤊ 0⤋
H2O(l) and NACl (aq) goes (plus heat) H2O(l) and NaCl(s)
H20(l) and OH (aq) (assuming it is ethanol) goes to (plus heat @ over 79 degrees C) to H2O(l) + OH (aq)
OH and NaCl is just the same as above
Godd lcuk
2006-12-29 18:15:44 · answer #6 · answered by prof. Jack 3 · 0⤊ 0⤋