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
-2
votes
0answers
17 views

Conversion: Chemistry using a powder [closed]

i am using a glucose powder that indicates it is soluble in H20 at 20 mg/mL. I need a final concentration that is 150ng/mL of glucose in 25 mL of neg urine. Struggling :( Do i need to make up a ...
1
vote
2answers
52 views

is bleach residue (after evaporation) safe?

I have been preparing bleach disinfectant lately in a spray bottle and has been spraying on my couch, door mat, door knots, etc... I don't rinse it... So I assume there is bleach residue left after ...
-1
votes
1answer
50 views

Does hot water make more foam? [duplicate]

A message has been floating around saying that it is better to wash your hands with warm water, as it helps the soap create more foam. Is it true? If it is true, why is it so? Is there a temperature ...
-2
votes
0answers
20 views

Doing practice problems for thermochemistry and I don't know how to answer this question any help would be appreaciated [closed]

A 5.00 L sample of water was heated from 22.00°C to 29.60°C in a calorimeter where methanol was completely burned in excess oxygen. Assume that liquid water was produced when methanol was burned. The ...
-1
votes
0answers
21 views

Calculate(i) molar concentration of benzoic acid(ii) molar concentration of benzoate ion(iii) pH of the resulting solution [closed]

Calculate (i) molar concentration of benzoic acid (ii) molar concentration of benzoate ion (iii) pH of the resulting solution. A buffer solution is prepared as described in (a) below. To a sample of ...
-2
votes
1answer
23 views

looking for alternatives to lysol wipes (Alkyl C12-18 dimethyl benzyl ammonium chloride) [closed]

Lysol and other recommended disinfectants claiming virucidal properties have been basically impossible to find here for weeks. I did however, find a bottle of clorox all-purpose disinfecting cleaner ...
-1
votes
0answers
12 views

What the difference in bromonation pattern between aniline and? [closed]

What the difference in bromonation pattern between aniline and acetanilide Meaning what the difference when add bromide on aniline and acetanilide structure ?
-1
votes
1answer
31 views

How much damage is done to ascorbic acid vitamin C content by sunlight and fluorescent light? [closed]

I left a large clear bag of ascorbic acid exposed to fluorescent light and sunlight for 48 hours. The sunlight was direct for several hours in the afternoon. How much has the effectiveness of ...
-3
votes
0answers
40 views

Add vodka to isopropilic alcohol [closed]

So I have 1 liter of isopropyl alcohol 99.9% and I would like to make it last longer. I was thinking... 1) I can add 400ml of water to it so that it will be 71.4% alcohol solution. 2) I can add 1 ...
-2
votes
0answers
27 views

Calculating concentration of sodium hydroxide [closed]

If you used 23.4 cm3 of hydrochloric acid with a concentration of 0.1 mol dm-3, calculate the concentration of the sodium hydroxide given that the volume of your sample was 25.0 cm3.
-5
votes
0answers
38 views

Hand sanitizer ingredient [closed]

I have a bottle of Ethyl Alcohol, Denatured. It containes: 90% Ethyl Alcohol (200 proof) CAS# 64-17-0, 5% isopropyl Alcohol CAS# 67-63-0, and 6% NP Acetate CAS# 109-60-4 I am trying to make a hand ...
-3
votes
0answers
23 views

What is this formula? CO2 + 4 H2 = CH4 + 2 H2O [closed]

1) How many moles of H20 can be produced from 12. 5 moles of CO2? 2) How many moles of CH4 can be produced along with 5.25 moles of H20?
-3
votes
0answers
20 views

I want to create a gel from isopropal alcohol [duplicate]

I’m trying to create a gel from isopropyl alcohol . Any ideas ?
-3
votes
2answers
291 views

222nm HARMLESS UV lamp for protecting from virus covid-19 [closed]

I did asked before , but apparently providing a link to a science report of harmless for humans (both skin and eyes) far-UV light was not enough to make people understand the significance of the ...
-4
votes
1answer
49 views

Disinfectant production [closed]

One of my friends says that he made a disinfectant. These are the materials: 83% methanol isopropyl alcohol propylene glycol and the others are: citral, geraniol, linalool, dlimonene, l alpha ...
9
votes
0answers
112 views

DIY hand sanitiser solution forms spongy substance

I am trying to make my own hand sanitiser since it’s sold out everywhere. The formula I use is 1 part aloe vera gel in 2 parts 100% isopropyl alcohol. The problem is when mixing the two, the solution ...
1
vote
0answers
77 views

Possbile to test percent of Ethyl Alcohol in hand sanitizer?

The percent of Ethyl Alcohol in hand sanitizers slowly drops over time. And manufacturers put an expiration date on the bottles. But I'd to test the percent of Ethyl Alcohol for myself for a new ...
-2
votes
2answers
40 views

How do I convert purity percentage to grams? [closed]

I'm trying to find out how many grams of a substance, in this case propylene glycol, are in a 5 litre container that is advertised as being 99.8% pure. Any help would be greatly appreciated.
0
votes
1answer
53 views

How does one determine whether a chemical requires hazardous waste disposal?

It is pretty easy to find information about the actual hazards of a chemical in the SDS, but I have been struggling to sort out which classifications require that the compound be handled differently, ...
0
votes
1answer
38 views

Looking for linear non polar compound which is used heavily due to its boiling or melting temperature or its density [closed]

So my son was given an exercise to find some linear non polar compound that is used heavily due to convenient boiling or melting temperatures or its density. Having no training in chemistry I have no ...
0
votes
2answers
59 views

Memory foam chemicals from pillow spoiled bed and rendered it useless [closed]

I have recently purchased a memory foam pillow and in two days i ve experienced breathing problems and stomach problems and eyes irritation due to the harsh toxins in it and I returned the memory foam....
1
vote
1answer
53 views

How can they “wash away” the caffeine from Nescafe Gold to produce that “de-caf” version?

I buy and drink Nescafe Gold all the time. I also buy the smaller "caffeine-free" version of the same product. It tastes very differently, which makes me assume that the caffeine does have a lot of ...
2
votes
0answers
34 views

DIY chemistry - Calcium from bone [closed]

I've gotten really into this subject lately from people who make their own cleaning agents and I was surprised how simplistic (although time consuming) everything was. I am interested in making ...
-1
votes
1answer
45 views

Why fibres are strong only in one direction? [closed]

Why fibres are strong only in the direction they are oriented?Why they break if we pull at right angle to their orientation? Here each blue line represents combination of polymeric chains.
1
vote
0answers
37 views

Why does a paracetamol tablet clean an iron [closed]

If you burn some clothes on an iron and some residue sticks to it, rubbing a paracetamol tablet over it (while it's hot) surprisingly removes the residue and cleans the iron. Please explain why this ...
-2
votes
1answer
55 views

Why are borates more stable than aluminates? [closed]

In the differences between Boron and Aluminium, it is given that boron forms stable Borates and Aluminium forms unstable aluminates . Please explain the stability of the 2 compounds.
0
votes
1answer
46 views

Is “family” synonymous with “group”? [closed]

Is using the term "family" strictly correct when we mean a group of the periodic table or is it just in general use (and should perhaps be discouraged in favour of using "group" exclusively)? At my ...
0
votes
2answers
275 views

How much of Sodium dichloro-s-triazinetrione dihydrate should I use to replace bleach? [closed]

I am trying to determine how much sodium dichloro-s-triazinetrione dihydrate powder I should add to water to create a dilution that can be injected into my water supply to react with the Hydrogen ...
2
votes
0answers
25 views

UV-spectrophotometer analytical method for doxycycline hyclate and tylosin tartrate powder [closed]

I am trying to detect tylosin tartrate from the mixture of doxycycline hyclate using $\pu{0.01 M}$ $\ce{HCl}$ as solvent, and waveleghth of $\pu{290 nm}$ for detecting tylosin tartrate in UV-...
4
votes
2answers
123 views

Water becomes cold on mixing energy drink [closed]

I noticed that the temperature of water decreases noticeably when I mix an energy drink (Glucon-D) in it. The ingredients mentioned on the pack are majorly glucose (52%) and sucrose (45%). I believe ...
0
votes
1answer
36 views

Independant variable for Asprin pill titration with NaOH solution [closed]

I am assigned to do an independently designed chemistry experiment for school. I want to do titration of Aspirin pills with NaOH solution using Phenolphthalein as indicator. I am struggling to find ...
3
votes
0answers
25 views

Formic acid and carbon monoxide outgassing from latex mattress

Formic acid is used as a coagulant to turn rubber tree sap into latex, formic acid also decomposes to carbon monoxide. Does this mean things like latex mattresses have the potential to off-gas carbon ...
0
votes
1answer
20 views

salts affecting the salinity of water [closed]

I know there are different types of salts like Himalayan salts table salts etc. I was wonder do different types of salts have a different level in salinity when dissolved in water.
1
vote
0answers
17 views

Is dialkyldimethylammonium chloride suitable for sterilization in mycology? [closed]

In hobby-mycology 70% rubbing alcohol is commonly used for sterilizing work surfaces, bags, syringes, still air boxes, basically everything. Alcohol however, seems to have some downsides, when it ...
1
vote
0answers
36 views

What is C2H33O28? (Empirical Formula to Molecular Formula) [closed]

I'm doing the final question on my homework, and got an issue with this question: "A 76.8g sample of a liquid used as a coolant in automobiles is found to contain 3.7 g of carbon, 5.1 g of hydrogen ...
1
vote
5answers
124 views

CO2 and Aeration

I am an aquarist, and I am looking into adding CO2 into my aquarium in order to help plant growth. This is a pretty standard practice, but some of the science spread within the community is ...
1
vote
1answer
44 views

Some substances appear white when crushed while others do not. Why?

Calcite crystals are semi-transparent but turn white when crushed. I used to think that it has something to do with the scattering of all wavelengths of light from small particles. But that cannot be ...
1
vote
0answers
60 views

What gas is evolved when using vinegar, hydrogen peroxide, and salt to etch copper, and why?

The question of how vinegar + hydrogen peroxide + table salt can be used to etch copper has been asked before (Full equation when using vinegar, hydrogen peroxide, and salt to etch copper). However, ...
4
votes
1answer
55 views

Understanding sodium hydroxide drain cleaner's exothermic dissolution of aluminum; does the aluminum need to be oxidized before it dissolves?

I'm not a chemist but I remember that the standard HF/nitric silicon etch used in micro-fabrication supposedly worked in two steps; the HF would dissolve the thin SiO2 oxide layer on the silicon ...
1
vote
0answers
17 views

How can sulfur dioxide and nitric oxide be filtered out from a waste incinerator's smokestacks? [closed]

How can sulphur dioxide and nitric oxide be filtered out from a waste incinerator's smokestacks? I also want to know what it looks like after it is filtered out.
-2
votes
2answers
31 views

Why when we convert from supersaturated to saturated solution we must use the crystal of the same kind of solute? [closed]

Why when we convert from supersaturated to saturated solution we must use the crystal of the same kind of solute ?
-1
votes
1answer
32 views

What happens and what do we observe during this qualitative analysis of bronze? [closed]

What is the observation when we add $\ce{HNO3}$ to bronze followed by addition of dilute HCl and bubbling of $\ce{H2S}$ gas through it. Please tell the inferences as well.
1
vote
0answers
43 views

Oxide caused by running a saucepan with aluminium handle through the dishwasher

Having run a saucepan with an aluminium handle through the dishwasher, the handle is producing a dark grey dusty residue, which I assume is an oxide of aluminium. The dishwasher was run with a typical ...
0
votes
0answers
43 views

How long does it take Freon refrigerant to disappear from a room after an accidental major leakage?

I would like to know please how long does it take Freon refrigerant to completely disappear from a room after an accidental major leakage? Does it stick to surfaces , clothes or walls? Does natural ...
0
votes
1answer
23 views

How does a double displacement reaction work? [closed]

When a double displacement reaction occurs with compound AB and CD, what determines that B and C are going to bond instead of A and C?
-2
votes
1answer
36 views

Why do transition elements specifically show complementary colours? [closed]

When I searched for why the colour absorbed and emitted by coloured transitional elements are different , i found out that the metals absorb the light they need and the remaining is reflected . But ...
0
votes
0answers
39 views

What happens when you run house electricity through salt water?

What happens when you run house electricity (120VAC) through salt water? (with standard copper wires!) Well, in https://youtu.be/dcrY59nGxBg , an interesting experiment was conducted to find out! At ...
21
votes
5answers
4k views

How would I measure the Carbon Dioxide content in Coca Cola over a period of time?

I'm sorry if this is a broad question, but I am trying to plan a simple experiment. I am wondering is there a somewhat simple way of continuously measuring $\ce{CO2}$. I already know the initial ...
1
vote
1answer
65 views

Comparing basic strength order of amines

In the above question I was asked to compare the basic strength order. So I did it like this: The Nitrogen in I and II will not participate in resonance so the only effect it could produce is ...
1
vote
0answers
40 views

Difference between liquid and solid stearic acid

I had some stearic acid in solid pellet format. It is slippy and in white color. I used this to make some experiments. I recently notice that some manufacturer can supply liquid stearic acid. I ...

1
2 3 4 5
29