Chemistry

I want to make a cup of tea....i want it to be as strong as possible. which of the following two methods would yield a cup with more tea in it ? 1. if i just put a tea bag in a single cup of boiled water for 2 minutes then remove it. OR 2. if i put a tea bag in half filled cup for one minute then remove it and put it into another half filled cup for another minute, remove it and then combine the contents of both half filled cups. Show me mathematically which would have a higher concentration.

Is there the possibility carbon dioxide powered engines? Can we get enough of an energy output from CO2?

For Ideal gases, mole fraction=volume fraction thanks!!!!

Hello, I would like to continue my career in a perspective field of the chemistry science (master's degree and/or science institute/laboratory). I am looking for an area in chemistry (I have a bachelor's degree in that) which would have cross-points with physics – my passion. Which items/fields in the science of chemistry and new technologies would you recommend? Pure theory is not for me - my talent is in applying, inventing, new ideas, improvement > experimental and researching character. I hold interest in the following areas: 1. Alternative power sources: - methods of gaining, converting, storing and generating; 2. Phase conversion, thermal processes, specific c…

As i understand iron as an electron sequence of 2 8 14 2, but i was thinking that when stars start to produce iron, it signals the end of their lives, could the iron that is produced within a star have an electron sequence of 2 8 8 8? as the pressure would condense the elements sequence. becoming almost a noble element, which does not what to react, So only when the star explodes does iron revert/expand to 2 8 14 2?

http://www.giantitp.com/forums/showthread.php?t=274523 I might be good for you to check out the link at the top, since it might give you a better idea about what i want from it all. (if not, oh well) Suppose a world's skies were actually green and very acidic. Rainstorms are acidic enough to dissolve, the surface is covered in oceans of acids. This is what has happened to the fantasy world that ive been designing for a game im creating (for D&D). A professor proposed that Nickle in the atmosphere would cause he green hues in the sky and would cause some type of sterility in animals when they got it in their bodies, as well as lung cancer. Would it still be br…

First of all, I know this was really stupid. I was playing around with bug spray and a lighter (maniacally laughing as I shot flames from the can), and after spraying some flames I noticed something frightening and bizarre. A blue flame was silently curling along my thumb. I stared at it for a moment, and in a burst of panic swatted my hand to put it out. However, I realized I had felt almost no pain aside from a small stinging sensation, and that there was no sign of damage where the flame used to be. How did this happen?

How do electrons change in magnetic fields? Can't figure out how it works.

I like organic chemistry, and was thinking about majoring in chemistry (BA in chemistry),. Does anyone know how the difficulty changes from organic chemistry to physical chemisry, biochemistry, analytical chemistry, etc... I wasn't a huge fan of general chemistry bud loved organic chemistry.

1st = 9.012182 2nd= 18.9984032 5th ? What does all this mean, im new here

What are the common solvents to use for purification and extraction? What are the most common temperatures for both extraction and purification of a substance? Has anyone ever tried doing this to common tables such as vitamins or medication? I am a bored hobbyist wishing to learn self taught chemistry in a lab setting. I am hopping to carry out some experiments I have seen online in forums and you tube, first by initially learning to extract and purify chemical substances.

I want to conduct an experiment to extract and purify Myristica from Nutmeg and LSA from Morning Glory. Can you give me a step by step process for this experiment? I wish to see the level of toxicity this substance has on cats.

I got project from my school to do something really impressive. I want to make fire from ordinary things. Is it possible to get fire from air without using any inflammable thing? Any reactions that can produce methane etc from ordinary things. Since methane is inflammable so it can get fire.

Hello all, I am wondering if a chemical formula can belong to more than one chemical. The one specific compound I am concerned about is a medication called Tramadol. On wikipedia it has the formula listed as: C16H25NO2 My question is: can more than one compound/ chemical have this formula? I am asking for personal reasons (my mother OD'd on this) and this NOT a question for a school project or something. Thanks, Ash

i want to know mechanism of Activated carbon when use K3PO4 or KOH as chemical activate and the reaction or equation for the iodine number help me please...........thank you very much domo arigatou gozaimasu ..............zia zia

I was reading National Geographic's article on the creation of element 118 (found here). A few questions came up. How do they choose which elements to apply to each other? Besides the number of protons, what factors would help decide which elements to use? As an example, and to further those questions. Why use calcium-48 and californium-249 to try and create Element 118? (besides the proton count. So why those ions?)

Another problem I've encountered while working on my animated series; the bikes' fuel source. They're magnetically levitated and jet-propelled, the fastest one of them can travel is 360 km/h, but what would their power source be? I'm trying to realistically think of one that wouldn't pollute nearly as much as petroleum fuels, since it's set in the distant future and more is done overtime to give us cleaner air and water.

I've been looking at a lot of Thomas the Tank Engine stuff lately, and I've been wondering about the relationship between modernization and the decline of steam engines. If we still had steam engines in large numbers running our railways, what would they be powered by? Coal has become too much of a burden on the environment, but the trains would need something to give them enough steam.

I want to make Hydrochloric acid and have calculated that the reaction will produce 0.605 grams of hydrogen chloride gas I would like to know how dangerous this is

First, I will give my understanding of enthalpy so far, and you can correct and/or advance my understanding where it is fitting to do so. H = E + PV A system's enthalpy (H) is its kinetic and potential energy (E) plus the energy (work?) required for it to displace its surroundings, exressed as pressure multiplied by volume (PV). It seems the canonical example of something displacing its surroundings (via pressure-volume work) is combustion pushing a piston up through a cylinder. Work is force acting through a distance (w = F · D). The heavier the piston is (i.e. the more pressure it exerts), the more force will be needed to move it upward a given distance. Hypoth…

I just read this: http://www.newscientist.com/article/dn23397-ozone-kills-by-hampering-gas-exchange-in-lungs.html Seems legit to me.

I'm currently doing research on growing ions on spider silk to make it stronger, and I was wondering how I could obtain titanium ions from a chemical reaction? Also, i was also wondering what the top five strongest elements are in terms of strength? Thanks!

Hello Might be here with another dumb question. So I'm looking at a list of the elements which is organized as a table of properties according to each element. These properties include... • mass density • phase at STP • standard atomic weight (or rather, mass) • number of naturally occurring isotopes • categorization (alkali, transition, etc.) • melting and boiling points • specific heat capacity • electronegativity • natural occurrence (as in primordial, in trace, or synthetic) Now, we know that each element exists as various isotopes, artificially or not. I'm wondering if some of the properties above differ among the given isotopes of a particular ele…

which solvent can I use to run TLC involving methylcarbazole, ethylcarbazole. and it spraying agent

Okay so I want to know everything about Covalent Bonds and Ionic bonds. And what is the differences between them, and how you identify which molecules have either covalent or ionic bonds, etc. Thanks for telling me.