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Results tagged with everyday-chemistry
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user 17175
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.
1
vote
Pink gatorade turned bluish purple by thick clear liquid
It does not have to be a full-fledged alkali to generate this color change effect. Alkaline earths work quite well (and less hazardously) even with only limited or sparing solubility. For a neat-loo …
- 62.5k
6
votes
Accepted
Is C4O5 possible?
Tetracarbon pentoxide, $\ce{C4O5}$, does not appear to be known, but Wikipedia reports what has become a surprisingly large variety of oxocarbons. They include simple carbon monoxide and carbon dioxi …
- 62.5k
1
vote
Accepted
Can Hydrogen Peroxide solution bleach paper without touching the paper surface?
Not 3% hydrogen peroxide, but if you can get the 50% solution it might work. However, it is dangerous to work with.
As described in the comments, hydrogen peroxide is less volatile than water, so when …
- 62.5k
1
vote
How to purify sodium chloride table salt that contains sodium ferrocyanide
Don't. Ferrocyanide is a good way of tying down cyanide ions so they don't do their usual bad things to you. Trying to purify the salt could release the cyanide ions.
- 62.5k
0
votes
Oxygen bleach discolored white tablecloth
HGTV.com gives tips for various materials, which have some differences. In general, they favor using organic materials; bleach is generally not favored. For your case eith polyester they recommebt rre …
- 62.5k
2
votes
What is the angle of LP-O-LP of H2O?
No such angle exists. The lone pairs on a water molecule do not form two lobes with no atom at the other end as they are often (mis)drawn in chemistry texts.
The molecular orbital structure of the wat …
- 62.5k
1
vote
Using a calcium metal anode in aqueous solution?
Basically, the reaction of calcium with water short-circuits your battery; the electrons you wanted to go through the external circuit end up going directly into the electrolyte instead.
Magnesium wi …
- 62.5k
25
votes
Is the behavior of a dilute strong acid the same as the behavior of a weak acid?
The pH is the same, yes, but the weak acid has undissociated molecules "in reserve", so to speak, and thus can neutralize a lot more of any base.
Indeed, this concept of weak acids and their conjugat …
- 62.5k
0
votes
Is mixing ammonia and bleach spray in the same parcel of air considerably dangerous to health?
My story is simpler than other answers. When I was in graduate school one of the cleaning guys told me he was knocked out mixing ammonia and bleach in his cleaning solution.
Bleach itself is best st …
- 62.5k
1
vote
Melting ice with salt - how does it start?
One possible mechanism: water evaporates from the ice, condenses onto salt pellets, forms salt solution which can then directly take up more ice and salt. Next thing you know, the road is covered in …
- 62.5k
2
votes
Non toxic Chemicals that will react in water?
Hold a gender reveal party with milk of magnesia. Stir some phenolphthalein (girl) or bromothymol blue (boy) into the basic (pH 10) suspension and let the guests watch what happens.
- 62.5k
3
votes
Why is compressed air flammable?
In former centuries the word "air" was used to descrive gases generally, not what chemists call "air" today. Hydrogen used to be "fire air". Sometimes this usage still creeps in, I've heard people u …
- 62.5k
1
vote
Sodium hypochlorite bleach and chromium mop handle
From the CDC:
EPA has an enforceable maximum contaminant level of total chromium in drinking water of 100 µg/L (100 ppb) for public water systems [EPA 1999h].
Trivalent chromium is less stringent, b …
- 62.5k
70
votes
Accepted
Why doesn't frozen sugar solution taste sweet?
Where is the sugar?
When you freeze a dilute aqueous sugar solution pure water freezes first, leaving a more concentrated solution until you reach a high concentration of sugar called the eutectic co …
- 62.5k
0
votes
Is liquid oxygen non flammable?
As many comments point out, liquid oxygen is not (in)flammable. But you might see the label "Oxidizer". That means it strongly supports or could set off combustion of things that are flammable.
- 62.5k