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.

Filter by
Sorted by
Tagged with
5 votes
0 answers
41 views

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 ...
  • 914
-1 votes
0 answers
9 views

Can Super Absorbent Polymer be recycled by heating to dehydrate it?

Can SAP expanded with tap water (i.e., some mineral load) be dehydrated and reused either by natural dehydration or warming it?
-4 votes
0 answers
15 views

Chemistry 11 Dilution with limiting problems [closed]

In a double replacement reaction, 20.00mL of 0.500M silver nitrate is mixed with 20.00mL of 0.600M sodium acetate In a double replacement reaction, 25.00mL of 0.200M potassium sulfide is mixed with ...
  • 1
-1 votes
1 answer
35 views

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 ...
-2 votes
0 answers
30 views

Does ethanol water solution forms a concentration gradiant?

I want to know if there is any significant difference between alcohol concentration at the top of the fermentation jar compared to the bottom, since alcohol is less dense than water. This thing I made ...
-1 votes
1 answer
43 views

Can limescale actually "etch" glass?

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 ...
  • 11
0 votes
1 answer
47 views

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
43 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
27 views

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
25 views

How fast does potassium hydroxide turn into potassium carbonate, in the case of leaked AA or AAA batteries?

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 ...
  • 107
0 votes
0 answers
40 views

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
85 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 ...
-1 votes
0 answers
25 views

Why must molarities be multiplied in the equilibrium constant? [duplicate]

I'm really wondering this question, can anyone tell with the derivation or some visual proofs? Thanks for answering!
0 votes
1 answer
101 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....
  • 177
0 votes
1 answer
81 views

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 ...
  • 29
-2 votes
1 answer
64 views

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
48 views

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)?
  • 1
1 vote
0 answers
25 views

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
197 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
61 views

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
52 views

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
85 views

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
66 views

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 ...
  • 99
2 votes
0 answers
56 views

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, ...
  • 21
0 votes
0 answers
52 views

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
78 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
67 views

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
47 views

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 ...
  • 447
1 vote
1 answer
2k views

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
22 views

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
64 views

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 ...
  • 21
0 votes
0 answers
68 views

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
51 views

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
74 views

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 ...
  • 21
5 votes
1 answer
660 views

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 ...
  • 5,878
7 votes
2 answers
1k views

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
53 views

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 ...
1 vote
0 answers
89 views

What is the resulting solution after leaching hardwood ash with water?

After doing online research, I've noticed there are differing interpretations on what happens when ash is mixed with water, so I've come here seeking clarification on what indeed happens, and also ...
1 vote
0 answers
46 views

What sugar substitute behaves the most like sugar when baked or cooked?

I'm not a chemist. I'm looking for a sugar substitute that I can use for a cheesecake that behaves as much like sugar when cooked or baked. I've tried stevia (a plant based sweetener)but the filling ...
0 votes
0 answers
41 views

Calcium Hydroxide, 98%, extra pure + DI resulted in a bright pink solution

When combined with DI, my 98% calcium hydroxide resulted in a pink solution. I am trying to make limewater for a class demonstration and have only ever seen limewater as a colourless solution. Anyone ...
7 votes
3 answers
309 views

Sodium Chlorite Listed as Active Ingredient in Anti-Fungal/Anti-Bacterial Fish Medication

My hobby is Fish Keeping. About 6 months ago I picked up a medication called Maracyn Oxy. It's a non-antibiotic treatment for true fungal and some bacterial infections and it works like an absolute ...
1 vote
1 answer
97 views

Calculating Enthalpy of formation versus Calculating Enthalpy of a reaction not occurring at standard conditions

My understanding of Hess's law and its use in determining the change of enthalpy of a reaction has been challenged recently. Up until recently, I thought that the only way to calculate a chemical ...
  • 13
1 vote
0 answers
103 views

Does lithium grease damage plastics such as ABS & PBT?

I have read that petroleum-based greases damage plastics due to the petroleum-derived nature of most plastics. However, I have seen lithium grease being used in electronics such as the gears in CD ...
-2 votes
1 answer
100 views

How does soap help in cleaning clothes and rinsing off oil and grease?

When we say that we agitate clothes so that grease particles get separate out from clothes as ionic part of hydrocarbon chains of soap is attached to water and non polar part of chain is dissolved in ...
0 votes
1 answer
67 views

Mechanism of successively melting ice with table salt [closed]

Hi I was reading about how regular sodium chloride in itself can melt ice outside, for example ice on roads during low temperatures. However, I am unsure about the exact details, as I have found some ...
  • 140
-2 votes
2 answers
88 views

What sort of chemical would require a school to be evacuated? [closed]

I am doing research for a fictional story. I want to create an accident which would force students to be evacuated from a school. Is there a type of chemical spill that might take place in a chemistry ...
  • 5
1 vote
1 answer
45 views

Can large, sticky, sodium polyacrylate crystals be coated in a powder to facilitate handling?

I am separating a larger container of sodium polyacrylate crystals into smaller containers for student experiments. Commonly known as "Deco Cubes" and used by florists in decorations and ...
1 vote
0 answers
295 views

Is shampoo or soap a better emulsifier? [closed]

Made homemade shampoo using: Sodium lauryl sulfate (SLS) Glycerin 95% ethanol Sodium stearate Made homemade soap using: 20% sodium hydroxide Vegetable oil 95% ethanol 20% sodium chloride ...
  • 21
0 votes
1 answer
73 views

Removing bugs and tar from my car with Bounce fabric softener sheets

I just used Bounce fabric softener moistened with water to remove stuck tar and dried bugs from my car. It worked like a charm, wiping it clean in seconds. Why did this work? The web says it ...
  • 19
4 votes
3 answers
996 views

Smell produced in reaction of sodium hydroxide and aluminium

I was doing an experiment with $\ce{NaOH}$ dissolved in some $\ce{H2O}$ and aluminium. My textbook says that the following reaction takes place $$\ce{2 NaOH + 2 H2O + 2 Al -> 2 NaAlO2 + 3 H2}$$ It ...

1
2 3 4 5
34