Ben Welborn
  • Member for 5 years, 7 months
  • Last seen more than 5 years ago
Why Is This The Worst Beer Cup
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8 votes

The rough texture is a physical catalyst (provides nucleation sites) for the evolution of carbon dioxide from dissolved carbonic acid. Pottery glaze fixes the foaming issue.

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What chemical properties make LSD so psychoactive?
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8 votes

The diethylamide "unit" dramatically potentiates lysergic acid. LS-Dimethylamide is significantly less potent, as are other/different amide or amine units. The differences in the amide or amine units ...

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Extracting urea from urine
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7 votes

First, from Boundless.com (Chemical Composition of Urine), "Urine is an aqueous solution of greater than 95% water, with the remaining constituents, in order of decreasing concentration urea 9.3 g/L, ...

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Are these chemicals suitable for disinfecting my water tank?
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7 votes

When you start asking questions about chemistry you are only left with more questions... in general terms of safety, using household bleach to create a concentration of 1 - 3 ppm sodium hypochlorite ...

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What would happen if I mixed a single water molecule in a beaker of hexane?
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6 votes

This is a clever question because the molecular weight of water is only 18.01528 g/mol while the molecular weight of hexane is 86.17536 g/mol. Naturally, you would expect the lower mass to rest on top,...

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What is the name for a reaction with a solid product rising from its container?
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5 votes

In pyrotechnic chemistry, they might call it a pharoh's snake (or serpent) reaction. To a degree, (or rather 330 °C) pyrolysis of the sugar is occurring (starting at 170 °C). In cooking, they would ...

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How to measure ppm of copper
5 votes

The absolute approach: Note: colloidal copper is small flecks of copper mixed with purified water. Typically colloidal copper is sold in dilute quanitities (like 100 ppm). Measure and record the ...

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Skunk Water Formula
4 votes

Here's a good looking list: The chemistry of Skunk Spray However, many stink bombs are commonly made of a very simple molecule called ammonium sulfide. But if it were up me (in a war), I might be ...

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Use of water in IR spectroscopy
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4 votes

I applaud this question. I have not really tried to find any solution, but I definitely recognize the trouble with water... nonsense/worthless reading. As far as why... easy; water absorbs like, all ...

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Is it possible to detect the component of an unknown substances using FTIR?
4 votes

Not really... FTIR is more like a fingerprinting device. FT basically means identification is done with your computer. But you just have one line/graph that represents all three together. It doesn't ...

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Could compressed refrigerant be stored feasibly in residential setting?
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4 votes

I happen to have a bottle of refrigerant in my house and another in my car (besides the stuff already being stored in my AC units). While this is definitely more of a physics question, or perhaps a ...

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How many litres of water will be sufficient to generate 1600 psi when heated?
4 votes

First lets' state the Universal Gas Constant: R = (0.08206 x L x atm) / (mol x K) And the Ideal Gas Law: PV = nRT Now, lets find a handy calculator to do everything for us: http://www.ajdesigner.com/...

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How to determine electrolyte concentration in solutions?
3 votes

OVER THE TOP, 2nd ANSWER There are many ways to analyze things so with respect to the original challenge, to find out which has more electrolytes (orange juice or gatorade), since there is not a ...

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Bleach in drain cleaners
3 votes

Lye is very corrosive, just like acid, except opposite (hope that makes sense). Although lye is a very powerful chemical, and it is sufficient for many blockages, oxidizing agents (like bleach) may be ...

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Why does the pH of soft drinks get lower as they go flat?
3 votes

I think you said it... phosphoric acid. Carbonic acid is "buffering" phosphoric acid... test seltzer water (composed of water and carbon dioxide with no other additives). Another way of thinking ...

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The road to solvation
3 votes

Calcium acetate, calcium hydroxide, calcium phosphate, cerium(III) selenate, cerium(III) sulfate, and lithium sulfate are more soluble in cold water than hot water. Also, calcium selenate seems to ...

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Separating citric acid from sugar
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3 votes

Citric acid is relatively soluble in ethanol (62g/100g) whereas sucrose is relatively insoluble in ethanol (1g/170ml). There are many different kinds of sugars and sucrose is probably not the primary ...

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Removal of octadecanoic acid from paraffin wax
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3 votes

It should be noted that typically, candles are about 10% stearic acid and 90% paraffin. Also, there are many different grades of paraffin waxes which are generally identified by their melting points (...

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H2O2 (Hydrogen Peroxide) catalysis in clear plastic bottle?
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2 votes

An easy test for this would be to react H2O2 with yeast or baking soda (sodium bicarbonate) before and after sun bathing. Or you could simply measure gas production in the sun vs in a box for say 24 ...

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Why is the discovery of chiral molecules in space a big accomplishment?
2 votes

I believe that this is the news article in question (link). The fact that there are left and right versions in space makes sense. The ability to see the chirality in space might be a first... the ...

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How can I keep homemade laundry detergent from disassociating?
2 votes

You should use about 0.25 - 0.35% xanthan gum (thickening agent) per the total weight of the mixture. Using xanthan gum is kind of tricky. You want to thoroughly mix the gum with the baking soda and ...

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Do swimming pools deplete the ozone?
1 votes

I've heard that question before (which is why I asked). So, to head off any potential urban legends... There is evidence that the regulations against CFC's are making a difference in the loss of ...

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How to determine electrolyte concentration in solutions?
1 votes

There are many ways to do this and essentially you are after the mineral and ash content. So, with that in mind, phosphorus boils at 280.5 °C and here are the common methods for mineral anlaysis (like ...

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Distinguish between glucose and Fructose samples
1 votes

Taste tests also work. Fructose is about 2.3 times sweeter tasting than glucose, and the tongue is a very good sweet-sensor. (source: wikipedia)

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Best ingredients for a homemade desinfectant
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1 votes

H2O2 is caustic and reactive, but of the list above, it would be the most complete germicide. H2O2 is an oxidizing agent. H2O2 compares well with bleach (bleach is arguably, the king of disinfectants)....

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The effects of H2o2 (hydrogen peroxide) with oils
1 votes

Oils will oxidize (and burn, too). With dilute H2O2, it's not a rapid reaction (in laymans terms)... some oils (like linseed) will oxidize more rapidly than others (like mineral oil). Essential oils ...

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How to dissolve bronze at room temperature
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1 votes

Supposing that the bronze is only 78% copper and 12% tin (and there are no other metals). Nitric acid will dissolve the copper... but this reaction is exothermic, which means it will heat up. At ...

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How do I analyse this data? (optimization experiment)
-1 votes

As you add sugar the displacement will only increase. In other words, if you add 300 grams of sugar to a liter of water, the volume will have increased (or been displaced) by about 150 ml (...

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