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Results tagged with everyday-chemistry
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user 11367
Applications of chemistry to reagents, reactions and processes of everyday life. Use this tag for question on chemistry in an out-of-laboratory/class context. DO NOT use this tag merely because the question is about simple chemistry.
3
votes
Is gravity an obstacle for homogenous solvation due to diffusion?
At normal Earth gravity, for all practical purposes homogeneous solvation is not hindered by gravitational force.
However: For some solutes such as sucrose and $\ce{CsCl}$, though, the "artificial lar …
- 17.5k
10
votes
Is toothpaste in plasma state?
This is categorically false.
I would consider toothpaste to be a highly viscous example of either a non-Newtonian fluid or a colloidal suspension.
On the other hand, plasmas exist as a mixed cloud o …
- 17.5k
4
votes
Why does concentrated HCl fume?
In the case of $\ce{HNO3}$, according the abstract of this paper$^\dagger$, nitric acid vapors act as nucleation sites for ambient water, causing the mists/fumes that are observed above concentrated n …
- 17.5k
16
votes
Can molecules diffuse upstream when emptying a cup of tea?
Particles/solutes are always diffusing in all directions. The question to ask is, "are they diffusing fast enough to overcome being swept along by the flow?"
Short Answer: No. Don't try it, though.
…
- 17.5k
3
votes
Can we safely consume ions?
Nope:
Lead
Arsenic
Cadmium
Mercury (H/T @orthocresol)
And multiple others...
To clarify a bit further, the hazards from sodium metal and from, say, ionic mercury are different:
Sodium metal is …
- 17.5k
2
votes
Device to Save Fuel
I'll set aside for the moment the question of whether an "electromagnetic device" of any kind that is suitable for aftermarket installation on a consumer vehicle has any capability to "sort molecules, …
- 17.5k
11
votes
Accepted
Chemical reaction in homemade deodorant
The most likely culprit is something acidic reacting with the baking soda (sodium bicarbonate).
Try mixing separately:
Baking soda and witch hazel
Baking soda and aloe vera gel
My guess is that o …
- 17.5k
3
votes
How can I emulsify Beeswax with Aloe Vera Gel?
Aloe vera gel is water based, whereas beeswax is, well, wax-based. As they say, "oil and water don't mix" -- at least, not on their own.
So, the trick is to make them willing to mix. To do this, you …
- 17.5k
7
votes
How do I lower the surface tension of water without using a detergent?
Vinegar does reduce the surface tension quite a bit. If you put a tablespoon or two of vinegar in a bowl and then run water into it, the bubbles that form on the surface persist much longer than they …
- 17.5k
11
votes
Accepted
What turns clear liquid soap blue?
The color of the precipitate is strongly reminiscent of copper(II) hydroxide. I hypothesize:
Chloride corrosion of copper from exposed brass (ref 1 || ref 2)
a. Per ref 2 above, sulfate may also pa …
- 17.5k
0
votes
Propane Combustion in a Gas Grill with Irregular Flameouts
This looks to me like there was a piece of something (plastic film, maybe?) loosely pinned inside the propane feed line, that periodically would flap over and block the flow of gas to the burner.
Rea …
- 17.5k
9
votes
Mercury metal: Not toxic?
Quoting matt_black's answer:
In fact you could probably drink it with few ill effects.
Indeed, as described here (link is to a PDF), there are documented cases where individuals consumed appreciable …
- 17.5k
4
votes
Accepted
What Type of Gas Would Vinegar and Epsom Salt Create Under Electrolysis?
You're most likely forming $\ce{H2}$ gas at the part.
If you're plating anywhere above about $2~\mathrm V$, that is probably sufficient overpotential to cause part of the passed current to go toward …
- 17.5k
27
votes
Realistic chemical spill accident in high school chemistry class
Collecting together the responses from the comments and Ben Norris's answer and adding one of my own, individual solutions in water of the following chemicals are realistic options for a liquid spill …
- 17.5k
39
votes
Why isn't ethane used for cooking?
In both cases, there appears to be a confusion of terminology between common and technical uses.
We commonly use methane and propane for cooking (and home heating), but not ethane. I would expec …
- 17.5k