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Results tagged with everyday-chemistry
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user 56637
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.
11
votes
How are poisons discovered? Does someone have to die/be poisoned from it first?
Sometimes poisons are discovered by chance.
At least that is what happened to me.
We were researching on products made with malonodinitrile and enones.
Since I was interested in the mechanism, I used …
- 4,402
3
votes
Function of water and the need of two barrels in a biogas Generator
The reasons are as follows:
The inverted barrel must be full of water. Then, when methane is formed, it will displace the water and the barrel will start floating. Methane does not do anything with …
- 4,402
3
votes
Accepted
Using drip extraction, how much caffeine is extracted from coffee as a function of the amoun...
Caffeine has a solubility in water of 20% at 80 $^\circ$C, while the coffee has between 1 and 4% caffeine.
That means that you have more than enough water to extract all the caffeine in the coffee.
…
- 4,402
1
vote
Why is cooking not potentially lethal?
During cooking many harmful compounds are formed, but they are not immediately lethal.
However, long exposure to the same harmful compounds can be lethal in the end.
Therefore it is important to hav …
- 4,402
1
vote
Best way to mix essential oils with water?
To make an emulsion, a stable milky mixture of oil and water, you need an emulsifier. Alcohol is not an emulsifier, so the mixture will separate at some point.
The most common emulsifiers used in cos …
- 4,402