Applications of chemistry to reagents and reactions of everyday life. This tag should not be applied to questions which are just about simple chemistry but it is specific to questions about chemistry in an out-of-laboratory or commonplace context.

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4
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1answer
23 views

Why is charcoal useful as a fuel compared to wood?

Charcoal is produced by partially burning wood. However, as the wood is burned, some of its energy is lost. Why is it that charcoal is still preferred as a fuel instead of wood in many cases? Doesn't ...
0
votes
0answers
39 views

Crusty white armpit stain that can't be removed by washing

Some of my t-shirts (the ones that are 100% cotton) started developing this strange armpit stain: it makes the fabric feel brittle and crusty around it; it can't be washed off with water and ...
3
votes
0answers
38 views

Sand Under Pool Turned Gold in Color

I'm removing an above-ground chlorine pool installed years ago by a previous owner of my house. Looking underneath the pool, I found that the sand on which it's resting is a gold/bronze color with a ...
5
votes
1answer
1k views

How could we figure out the recipe of Coca Cola? [duplicate]

I know that the ingredients and the manufacturing process are both important, as discussed in this question. What would be a modern approach to figuring out the ingredients? The ingredients listed ...
0
votes
0answers
12 views

Difference plastics and silicone [on hold]

I'm confused about the difference between plastic and silicone. Are they both made from petroleum? My confusion arises from hearing that silicone based protectants like for vinyl can harm the ...
3
votes
0answers
17 views

Water conditioning with a descaler?

Products known as “descalers” are said by the manufacturers (such as this one) to use electrical impulses to transform calcium bicarbonate (which builds up in pipes and water-using appliances, causing ...
8
votes
1answer
117 views
+50

Are modern newspaper inks a health risk?

It's very common in India to see newspapers being used to absorb oils from oily snacks, or simply for temporary food packaging. Some articles say that covering food items in newspaper is a health ...
-3
votes
0answers
17 views

What is the pressure of a gas in KPa if a gauge used to measure the pressure reads 700.0mmHg? [closed]

I would really appreciate help on this. I have no idea how to convert mmHg to Kpa What is the pressure of a gas in KPa if a gauge used to measure the pressure reads 700.0mmHg?
0
votes
0answers
19 views

Krown Rust Protection/RustCheck - Soluble in?

This is a very practical question in nature and not meant to need a tremendously technical explanation. As a little background, I work as a auto detailer and have yet to find something to easily ...
6
votes
1answer
60 views

What causes metallic objects to ring?

If I use a iron rod to hit a 3" × 12" iron plate there is the distinct sound of a metallic ring. What is the cause of this distinct sound? Is it the crystal structure of iron or that iron is a ...
20
votes
2answers
5k views

Why isn't ethane used for cooking?

We commonly use methane and propane for cooking (and home heating), but not ethane. I would expect ethane to be suitable for this, being in between the two, but I've never heard of anyone using it for ...
0
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0answers
10 views

Post pictures from Iphone [migrated]

How do I post pictures on here to reference when asking a question? I do not see an upload prompt or anything of the sort and I do not know computer coding.
0
votes
0answers
30 views

What is the chemical, which he use for covering the “wooden-comb”?

Many days ago, I have seen this video on YouTube, at here: https://www.youtube.com/watch?v=oRV73gKShto. In this video, he dropped the "wooden-comb" into a bowl of chemical, for covering it. It seems ...
-3
votes
1answer
51 views

Anodized Aluminum…danger? [closed]

I recently got an iMac, but have been feeling anxious about using it as the keyboard is made of aluminum as is also the actual computer. the keyboard and computer are made from Anodized aluminum, ...
11
votes
2answers
4k views

Is poison still poisonous after its 'expiration date'?

As we all know that, Any poison is nothing but a chemical compound. And as discussed in the question: Chemicals-do-have-an-expiry-date! So, my question is: Is poison still poisonous after its ...
1
vote
1answer
30 views

Using baking powder to make baked food crispy

The recipe I use for chicken wings achieves a fried texture by dusting the wings with baking powder and then baking at 220°C (425°F). The chicken is also dusted with salt and other seasonings, ...
0
votes
0answers
38 views

Can we make glass by heating Martian Soil

I was puzzled by a very interesting question. Can we heat up Martian sand and produce glass just the way we do here on Earth. (The Basic way) For info, Martian sand consists of the following - ...
0
votes
0answers
22 views

To what extent are caramelization products sugars?

Suppose that we are caramelizing sucrose by applying heat. We get what cooks know as "caramel". Wikipedia lists several reaction types happening during caramelization. Obviously, some of them result ...
0
votes
0answers
22 views

Using Hydrogen Peroxide to clean toilet

I want to use lysol hydrogen peroxide multipurpose cleaner for cleaning my toilet. Is this a dangerous course of action?
0
votes
0answers
8 views

How can I filter amylose and amylopectin out of solution?

So I have a solution of propylene glycol and I want to filter out the amylose and amylopectin with the least actual chemical change needed. The smallest diameter of the amylopectin molecules (19 ...
1
vote
1answer
49 views

How does salt help with −30 °C cold ice?

I know that ice gets colder when salt is added. But how big is the effect if it is already −30 °C? Can it cool it down more or does it just work with −1 °C cold ice? Another question: If I have a ...
2
votes
1answer
22 views

Is micelle formation in a soap solution a chemical reaction?

I know that soap molecules have a hydrophilic end and a hydrophobic end which attract to water and oil respectively. However, does a chemical reaction take place?
1
vote
1answer
30 views

Common ingredient between two disinfectants?

I find one of the most powerful associations to be odour, placing me very clearly in a time and place. Recently we were using Dettol in the house and I was reminded very clearly of a another ...
0
votes
1answer
57 views

Does changing the volume of a reactant affect the rate of reaction? Does changing the volume of HCl affect the rate of a Mg & HCl reaction?

I'm doing a experiment in which I'm testing the affect of the concentration of a reactant on the rate of reaction. The reaction is between Magnesium and Hydrochloric Acid and so I'm changing the ...
0
votes
0answers
20 views

Is qualitative analysis can be used to determine chemical constituent of an insoluble solid?

I would like to use qualitative to test the chemical composition of a wooden substance. Can qualitative analysis use to test substance like solid? Since it is not soluble, therefore is it suitable to ...
1
vote
1answer
76 views

Supermarket HDPE plastic bags safety

Supermarket plastic bags are made of high density polyethylene, and I am interested in the decomposition products at high temperature: what type of compounds are released and how dangerous are they? I ...
0
votes
0answers
36 views

What is the suitable method to determine the chemical constituent for substance like chopsticks?

I would like to carry out an experiment to determine the chemical constituent of chopsticks since I know that chopsticks have effects on health and environment. I not too clear about the method to ...
4
votes
2answers
54 views

Safe endothermic reaction that gets below freezing?

I have a project/idea I am working on but I am only 14 years old and I need some help. I'm looking for an endothermic reaction that gets below freezing, but the chemicals before the reaction and ...
0
votes
1answer
73 views

Minerals in water solidify when heated?

Is it possible for minerals in drinking water to solidify when high temperatures are applied? The minerals in mind are: iron, copper, aluminum, magnesium. Background: I have small, brittle, darkish ...
0
votes
1answer
28 views

can electrolyzed water that results in OH− anions accumulating at the cathode be used to disinfect the water?

The Water system involves the electrolysis of tap water to separate the constituent elements. There is no addition of other chemicals such as salt. The electrolyzed water results in H+ cations ...
14
votes
1answer
1k views

Counterintuitive Reaction of Aluminium On Steel Balls

There is a certain video which I just watched about 2 large cast iron balls. If the balls are struck together, no reaction happens, but if one is covered in aluminium foil and then struck, a large ...
2
votes
0answers
15 views

Reagent for identification of Water Hemlock (Cicuta) or Cicutoxin?

Chemical reagents are used for macroscopic identification of some wild mushrooms. Are there similar reagents used to identify Water Hemlock (or potentially cicutoxin) as a supplement to visual ...
1
vote
1answer
29 views

Toxic levels of baking soda

What is the amount of baking soda that would be considered toxic for skin? I ask because there is a lot of misinformation online about using baking soda as a "natural" underarm deodorant, and how it ...
1
vote
0answers
40 views

Is there any process to determine what elements a physical sample is made from?

I'm wondering if anyone knows of laboratory services that can analyze a sediment sample to tell what it's made of. Background: our drinking water has small black flakes appearing, and our city water ...
0
votes
0answers
13 views

Aluminium free deodorants

Are there any chemicals without aluminium which can be used as a deodorant? Alum is the commonly used deodarant ,but is it harmful as aluminium cholorohydrate and zirconium?
0
votes
1answer
36 views

Formation of water vapour during combustion

When we burn fuel, water vapour is produced because hydrogen is burnt as well. But since the vapour is in gaseous state already, it shouldn't steal any heat from fuel gases, should it?
0
votes
1answer
29 views

Preparing for the Chemistry CLEP

I'm on my second go at college after a short and much needed break and I am trying to knock out some per-requisite courses in order to apply for some graduate level medical programs. I've looked at ...
0
votes
1answer
35 views

What does ozone smell when treating with household water?

We live in a rural area and our well water comes from storage tanks that are continously being ozonated before passing through an infra red lamp. The water in the house smells like it contains ...
1
vote
1answer
54 views

What liquid other than water that is safe to put on your skin will provide the most evaporative cooling?

Suppose that you are in some extremely hot and humid place where your sweat just doesn't evaporate well enough to cool you down. You can then consider putting a liquid other than water on your skin, ...
0
votes
0answers
14 views

Hydrogen peroxide “cleaner” - How long will it increase inflammability in moist fabric

I treated a moist carpet in a car with an anti fungal liquid containing 1/5 hydrogen peroxide, the back of the bottle warns of flammability-enhancement. I'd like to dry the carpet (in the car, as ...
0
votes
1answer
31 views

How to alkalize moist fabric

Here's some practical application of chemistry for ya. In short: I have a moist, hard-to-remove carpet in a car that's hard to get dry. I treated it with an anti fungal agent containing 1/5 hydrogen ...
-2
votes
2answers
87 views

Why are vegetable oils better than water in cooking? [closed]

In core science we have been learning about vegetable oils but we haven't covered why they are better than water. Are vegetable oils better than water? Why? What can we use vegetable oils for other ...
4
votes
1answer
69 views

Would adding acetic acid from household vinegar to washing machine make it too dilute to be effective?

Many people advise adding a cup of acetic acid (vinegar) to one's laundry during the clean cycle. From my calculations, considering one cup of acetic acid and a top gallon machine (at 40 gallons), it ...
1
vote
0answers
26 views

Percentage Yield from a Graph [closed]

For my lab report, I was wondering if anyone knew a viable method for finding the percentage yield of a reaction if given the masses of the limiting reagent along with the actual yields for each ...
1
vote
0answers
34 views

Is underground water safe to drink after 0.01 micron filter? [closed]

I just buy a water filter: http://www.stiebel-eltron.co.za/water_filter_stream.html and it says it has: Ultrafiltration (UF Filter) Membrane Micro-porous 0.01 micron hollow fiber filter removes ...
1
vote
0answers
35 views

How to produce molasses from liquid pineapple waste? [closed]

Can molasses be produced from liquid pineapple waste? If so, what is the procedure to do so? Is a 3-time boiling process required?
3
votes
2answers
55 views

Is gravity an obstacle for homogenous solvation due to diffusion?

If you have a glas with a spoon of salt ($\ce{NaCl}$) in it and you carefully add the water($15^\circ\mathrm{C}$). A lot of the salt will not be dissolved immediatelly, it will take a while for full ...
0
votes
1answer
39 views

Glycine in magnesium glycinate

To be very specific I'm looking at a supplement that contains 2,000 mg of magnesium glycinate. In that serving it sates there is 2oo mg of elemental magnesium. How much glycine is there?
0
votes
1answer
165 views

What is the chemical equation for cooking rice?

What is the balanced chemical equation for the chemical reaction of cooking rice (including the formula for starch etc.)?
1
vote
0answers
20 views

Calculating isotope percentage. [closed]

Chlorine, with an atomic number of 17 consists of two isotopes one with 18 neutrons and one with 19 neutrons. If the mass number of chlorine is 35.453, what percentage of the chlorine consists of the ...