That was just a teaser to get people interested in it.
Here is some of the research by Gaetan Chevalier, Ph.D.: http://humanscience.tripod.com/sitebuildercontent/sitebuilderfiles/efx_science_physiology.pdf
And I think I just found my answer by reading this research. It says that when you are...
Looks like nobody heard about earthing. People ground themselves, because the voltage we get from EMF's (also known as EMF pollution) are making us feel depressed and unhealthy or fatigued. So grounding makes us connect to the Earth in order to have a neutral voltage of zero. There are health...
I have a question about grounding/earthing.
People are grounding themselves because EMF's of electrical appliances are adding a voltage difference to us and the earth.
When someone grounds himself, the voltage difference immediately goes to zero. Electrons will flow to the body and these are...
Ah, then it's easy, it will go down! Experiment cancelled.
Some background why I asked this.
I want to spray some of Na2CO3 solution onto an acidic powder. If I let the container standing there for a month then I'm sure the solution won't be as effective to neutralize the acidic powder...
Let's say 25 kg Na2CO3 + 500 l H2O = 0,47 mol/l CO3^2-
pH = 12
Equation for OH-: x^2/[CO3^2-]=1,8x10^-4
I have no idea how to calculate if CO2 would absorb at this pH...
I've read that with pH > 10 this reaction dominates: CO2 + OH- = HCO3-
So I bet pH will go down.
For the...
Well, I have this tank that is routed to open air, so all the CO2 that could exit the solution, would go up and mix with the environment air.
I wonder if the concentration of CO2 in air is high enough to absorb back into the Na2CO3 solution?
I am still in the dark about the answer though...
Thanks for your info, but I still have some questions:
What is wrong with this deduction?
I've seen this equation:
CO3-- + H2O <=> HCO3- + OH-
Then maybe: HCO3- + H2O <=> H2CO3 + OH-
will occur if you put enough CO3-- into solution. (I'm not sure this will occur with high pH...)...
Does anyone know if a Na2CO3 solution will change in pH when you leave it for a month? Will the pH go up or down? I thought maybe the CO2 would escape which would make the pH go higher?
I read on the news that when you place oil from behind your ear onto the diamond. You can stick it to the window and the adhesive power will be so strong that you can place a metal pincet on it.
Any explanation?
http://www.standaard.be/video/videoPlayer.aspx?cat=1&subcat=1&videoId=352871
Homework Statement
We have a tank with some gel and it will be emptied into another empty tank. The air in the first tank wil stay in the first tank. The air in the second tank will stay in the second tank.
What is the equilibrium height of the solution inside the tank.
also, see Excel...
Let's say:
20 °C, 3 minutes exposure (then washed with water), physiological damage (skin can be scraped off or hurts when you touch it or is completely red).
Which pH will do this?
The test is:
We want to spray 2% NaOH with a spray nozzle up to 3 meters far into a pipe to mix it...
The best I can find is:
C8H18 + (25-x)/2 * O2 => 9 H2O + (8-x) CO2 + x CO
for benzine fire.
Be aware that fire is just warm gas+matter. When you see warm metal it will also be red and yellow but in a solid state.
I searched up NaOH and saw that it's irritating at 0,05 to 0,5 mol/l. So I guess at a pH of 12,7 you will burn your skin. Is that true?
I'm going to do an experiment with 5% NaOH. I thought it was a very small concentration but actually you could burn quite a bit with this solution after a...