Questions tagged [everyday-chemistry]

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.

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0 answers
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What did I make? Chromium electrolysis [closed]

Here is the setup I am using. Cathode and Anode A Chromium coin was used as the anode and was suspended with a wire across the top of the solution. The coin was the only point of contact with the ...
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0 answers
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I don't understand ions. Do they have a taste? [closed]

Do ions define the taste of the compound they form? Blood tastes metallic because hemoglobin contains ions of iron, but like... I'm sure it doesn't always work like that Do they have physical ...
3 votes
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Creating non-brittle non-toxic verdigris (blue-green copper patina)

First off, I checked and there are indeed a number of questions on copper patinas, but none which deal with brittleness. Context I own a number of copper writing utensils, which I'd like to get a nice ...
9 votes
1 answer
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Why does my sand dissolve in citric acid?

I soaked and washed white Darice decorative sand in distilled water. I added food-grade citric acid to different distilled water, then I sprinkled in a few grains of the sand. The sand bubbled and ...
-1 votes
2 answers
40 views

Relationship between grams of root and content in a tea

When we make a tea from a some herb, what exactly is the relation between the weight of the herb/root stepped in hot water and how many grams/milligrams are in the tea. For context and giving a ...
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-2 votes
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Calculating the molar mass of a solute from a freezing point [closed]

A mass of 2.3g of an unknown solute is added to 14.3g of benzene (Kf = 5.12). The freezing point decreased by 5.1. What is the molar mass of the solute? please show full process :)
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Why must shell in an atom be multiplied in Electron Trajectory (r=n²a) [duplicate]

Because electron transfer takes place between certain shells energy level, then the atom will only emit radiation with that level certain energy.Thus the cause can be explained The spectrum of an ...
0 votes
2 answers
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How to dissolve beeswax/carnauba wax to spray

I’m trying to make an edible hydrophobic coating for a tart shell. If anyone knows of a way to lower the viscosity of an edible wax enough to make it sprayable I’d really appreciate it. I have a paper ...
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Chemistry of a proposed Capsaicin extract [closed]

Background: I’d like to make an extract of capsaicin using the following ingredients: Capsicum powder, Fractionated coconut MCT oil, apple cider vinegar, and saline. The idea is for the capsaicin to ...
2 votes
1 answer
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By what mechanisms does Amoxicillin break down while in storage?

Assuming the following conditions, what are the primary mechanisms of breakdown? Dry powder form (not in any pill or packaging) Stored in a glass bottle Not exposed to light 22C ambient temperature
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2 answers
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When we take baths, how does the water in the bathtub absorb only the dirtiness on our skin?

I'm 16. I study chemistry in college along with biology, physics, and maths, and I have a general interest in all of them. I always found this interesting: sometimes when I left the bathtub, even when ...
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Which water is easier to filter? Rain water or tap water [closed]

I understand the water greatly varies depending on the region and filtration differs as well. Is it better to filter rain water or tap water from contamination like hormones, pesticides, and cloud ...
-2 votes
1 answer
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magnesium citrate to carbonate conversion - for oral consumption? [closed]

I've been instructed to drink a 10-oz bottle of magnesium citrate saline solution, which label says has about 17.5g mag citrate in it. (1.74g/fl oz) I prefer to make my own solution using a powdered ...
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1 answer
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How does vinegar free deposits from a surface?

I use vinegar to clean/descale an electric kettle. How does this work? i.e. how does the vinegar free the deposits (calcium, manganese?) from the surface?
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Can I use potassium ferricyanide instead of potassium ferrocyanide for the identification of calcium?

I have to perform the identification test of calcium ion in calcium gluconate. I do not have potassium ferrocyanide for the test but I do have potassium ferricyanide. Can I take the ferrocyanide form ?...
0 votes
1 answer
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Oxidation and Polymerization of drying oils

I am having trouble understanding the relationship between polymerization and oxidation of drying oils, specifically linseed oil used for fine art. In refining my own oil by filtering it then leaving ...
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2 answers
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Are mixtures of finely ground solid fertilizer compounds stable? [closed]

If I had a combination of the following as finely ground powders, would it be relatively stable, or would they react to form other compounds? Sodium Nitrate Ammonium Nitrate Calcium Nitrate Potassium ...
5 votes
0 answers
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Why do vessels get a better shine when tea-leaves are soaked overnight in it before washing?

The other day I dumped consumed tea leaves into a brass utensil because I needed the tea-pan urgently. The vessel with the tea leaves didn't get around for cleaning until the next day. Ergo, the tea ...
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1 answer
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Can Hydrogen Peroxide solution bleach paper without touching the paper surface?

As many webpages suggest, 3% hydrogen peroxide solution can be used to bleach paper by soaking the piece of paper into the solution. I tried and it is really quite effective. However, if the piece of ...
-1 votes
1 answer
57 views

Can limescale actually "etch" glass? [closed]

There are lots of articles on the internet about limescale "etching" glass due to the porous nature of glass. However, as I understand it, limescale is just calcium carbonate so can it ...
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1 answer
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Chemistry behind adding methyl salicylate to iodine dissolved in petroleum jelly [closed]

We did a project at my school where we were asked to create a pain-relieving balm, inspired by Iodex. We first took 50gms of petroleum jelly and heated it in a water bath until it melted and became a ...
2 votes
1 answer
49 views

What is the reason you could use synthetic detergent in hard water?

I learned that because synthetic detergent doesn't make strong dative bond with $\ce{Ca^2+}$ or $\ce{Mg^2+}$, you could use it in hard water. But I couldn't understand why soap makes strong dative ...
-2 votes
1 answer
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Reaction of sulphuric acid with ammonium hydrogen phosphate [closed]

How will the reaction of $\ce{H2SO4}$ with ($\ce{NH4)2HPO4}$ [diammonium phosphate, commonly used DAP fertiliser in agriculture] proceed? Will phosphoric acid be produced, or a complex phosphate-...
-2 votes
1 answer
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How fast does potassium hydroxide turn into potassium carbonate, in the case of leaked AA or AAA batteries? [closed]

When batteries start to leak, the highly toxic potassium hydroxide comes out, but it reacts with the carbon dioxide in the air and turn into the less toxic potassium carbonate salt. I'm wondering how ...
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Neutralizing/ removing the mothball/naphthalene smell from textbooks

I was recently given some excellent (and very expensive) academic textbooks. Unfortunately they must have been immersed in mothballs for a long time. When I take them out of the box, the smell of ...
0 votes
3 answers
382 views

What is mAh/g Specific capacity?

In battery chemistry I've been reading about specific capacities of various electrochemical cells as $\pu{mAh/g}$. For example, in one article it says the specific capacity of the system is $\pu{75 ...
0 votes
1 answer
137 views

How do you calculate percentage acidity?

I am looking to calculate the percentage acidity of different drinks for the purposes of devising cocktail recipes. According to Liquid Intelligence by David Arnold, the optimum acidity level is 0.7-0....
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1 answer
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Can I make bleach for laundry from sodium dichloro-s-triazinetrione

According to The Organic Prepper, one can generate bleach from pool shock. The good news is, you can make your own bleach with granular calcium hypochlorite, the primary component of typical pool ...
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1 answer
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Does Sodium carbonate and magnesium hydroxide react?

I understand Sodium carbonate and calcium hydroxide reacts, but I am surprised to see there is not any description regarding Sodium carbonate and magnesium hydroxide reaction. Is there a reason? do ...
-2 votes
1 answer
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What is the angle of LP-O-LP of H2O? [closed]

What is the angle of LP-O-LP of H2O, if H-O-H is 105 degree (or hybrid of sp3.86)?
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What is an ideal binding agent for wood ash?

I have some wood ash left over after extracting potash. I want to make biocomposites as per the below link. https://materiom.org/recipe/59 The recipe uses agar agar which is a food grade material and ...
3 votes
2 answers
337 views

Are acids effective in removing soap scum?

In my experience, most of the commercial products intended for removing soap scum from bathroom surfaces are ineffective. No matter how long you leave it on or how hard you scrub, the soap scum doesn'...
0 votes
1 answer
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Getting magnesium chloride gunk off a wood shelf

I have a situation. Some magnesium bath salts got left on a wood shelf in my bathroom in a bag that was not closed. Being hydroscopic, it sucked up a ton of water, and then spilled onto the wood. ...
-2 votes
1 answer
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Hund’s Rule - Please help explain below using Hunds rule? [closed]

Why is it easier to excite a 2s electron in a carbon atom to a 2p orbital than it would be to do the same in nitrogen?
0 votes
3 answers
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Non toxic Chemicals that will react in water?

Long story short, I'm planning an in-home escape room and want to create a puzzle where the guests find a vial containing some sort of chemical that they can dump into a water fountain. My intention ...
-1 votes
2 answers
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How long can dimethyl sulfoxide be safely stored in a HDPE "barrier bottle"?

How long can dimethyl sulfoxide be contained in a HDPE barrier bottle without any reaction between the plastic and the solvent? I have read that DMSO is not reactive with HDPE, but I would like to ...
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2 votes
0 answers
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What layer is formed on Titanium when soaked in Hydrogen Peroxide?

A few pieces of TI-6AL -4V ELI ASTM F136 Titanium jewelry were left to soak in a small cup of 3% household Hydrogen Peroxide. After about a week of soaking, all of the Titanium had acquired a smooth, ...
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0 answers
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How to draw delayed picture on the concrete wall?

I have a concrete (stone) vertical wall. I want to put a picture on it. I have several limitations: I want to make it in a security, so I want to place something on the wall, that would be ...
0 votes
1 answer
92 views

What is the best ratio of salt to water when using a salt solution in the electrolysis of water?

I am using the electrolysis of water to provide middle school students with a phenomena to explore chemical and physical change. The set up is producing much more hydrogen gas than oxygen gas and I am ...
0 votes
0 answers
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Is the chemistry behind the "Anoxic Filter" actually real? [Pond/Aquarium Denitrification]

In the Aquarium hobby, there are two methods to remove NO3 from your water: Plants Water changes There are a handful of people and companies that sell porous biological media that claims to create ...
6 votes
0 answers
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Are all humectants sticky?

While using a topical lotion based on ethanol, water and propylene glycol, I noticed that it becomes sticky while drying. Propylene glycol is a humectant and is used for this purpose in ...
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1 vote
1 answer
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Does Rubbing Alcohol + Bleach really produce Chloroform?

A lot of sources on the internet claim that mixing rubbing alcohol with chlorinated bleach produces chloroform. Rubbing alcohol is Isopropanol, and bleach is Sodium Hypochlorite. Neither of these are ...
1 vote
0 answers
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Buffer when testing soda with DCPIP

We are testing a range of sugary drinks (coca cola, orange juice, and chocolate milk) with DCPIP to detect vitamin C. The coca cola has given a false positive and we were wondering if this is due to ...
1 vote
1 answer
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Could mixing naphtha-based cleaner and industrial floor cleaner produce hazardous substances?

I work in a car dealership, and the guy who cleans the workshop uses an industrial floor scrubber / vac on the floor tiles. On particularly stubborn oil / soot marks, he uses naphtha-based brake ...
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If they both form hydrogen bonds, Why does borax make polyvinyl alcohol slimy/elastic but water doesn't?

When dissolved borax (borate ions) and polyvinyl alcohol are mixed, an elastic slime is formed. To my understanding, this is because the borate ions form hydrogen bonds with the OH groups on the PVA, ...
0 votes
0 answers
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Table of viscosity of water vs temperature

Above is the table for water physical properties table with temperature related with a,v,b,Pr,Ra factor. This table has temperature only from 0 to 100. May I ask if there is a full table for this with ...
2 votes
0 answers
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protecting copper with benzotriazole

I was told years ago that benzotriazole ("slightly soluble in alcohol"), when applied to a copper surface, will protect the surface from corrosion from the air ("forms a monomolecular ...
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5 votes
1 answer
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Why would tellurium + sodium hydroxide have worked as a good anti-knock gasoline additive (if it wasn't so smelly)?

The April 22, 2022 Veritasium video The Man Who Accidentally Killed The Most People In History mentions several aspects of the historical use of tetra-ethyl lead in gasoline, the resulting widespread ...
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7 votes
2 answers
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Why does my sea salt have a best by date? [duplicate]

Seems like it should be good for thousands of years, if not millions.
-4 votes
1 answer
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How does protein denaturation speed change with temperature? [closed]

So this is something that I had been wondering since middle school. We "roughly" know that protein denaturation occurs above a temperature of 72 degrees Celsius, and is the reason why it is ...

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