Mark asks…
What are the properties of the hydrogen halides?
I need to knwo if hydrogen chlodie, hydrogen bromide and hydrogen iodided are readily soluble in water (and is ther a residue of undissolved gasses left-what?)
The reaction of the gases with amonia ad what they form.
The stability of the gases towards heat.
admin answers:
All of these are soluble in water, and the form storng acids in water. They will react with ammonia since thy are acidic and form the ammonium salts, for instance ammonium chloride for HCl. ( NH4Cl). All of them will be heat stable.
Sharon asks…
Is it possible to build my own hydrogen-powered car and produce my own hydrogen to power it?
My dad has this idea and wants to start making his own hydrogen using electrolysis and solar panels. With this hydrogen, he wants to power a hydrogen powered engine which he will buy separately and put in a car. He wants to start a business this way and sell these hydrogen powered cars and use the hydrogen he produces to power his own car.
I am trying to convince him that it won’t work but I’m not too sure on the reasons why.
Can you even buy hydrogen-powered engines? How dangerous would this be? Could enough hydrogen be produced using electrolysis powered by solar panels and how would this be stored and put in a car? What are the chances of it working even if it is possible?
Please, any help would be greatly appreciated. Thanks
admin answers:
There are several such plans on the internet to modify your current car to make it consume water instead of gasoline. I have studies the issue and texts as it seems interesting and got to the following conclusion:
In theory this is indeed possible. One day it will be accomplished, just maybe not the way we imagine today. The only real problem is that it takes energy to separate water molecules to make it’s energy available. So you would need an extra energy source to make the system work. I would recommend using solar power to boost the process, although their efficiency ratios are not yet up to the task, and you’ve got an environmentally friendly car.
So if you solve out the alternative source of energy for your modified engine, you have the odds of making it.
Paul asks…
How are hydrogen bonds different from covalent bonds?
Hydrogen bonds are weaker than covalent bonds and form between partially charged atoms or molecules.
The atoms in hydrogen bonds have valence electrons; the atoms in covalent bonds have valence spaces.
The compounds that result from hydrogen bonds contain carbon; those that result from covalent bonds do not.
Covalent bonds are organic; hydrogen bonds are inorganic.
admin answers:
The answer to your question is “Hydrogen bonds are weaker than covalent bonds and form between partially charged atoms or molecules” …
Hope this helps!!!
Daniel asks…
How do I compress hydrogen and oxygen into a glass bottle, like a snapple or sobe bottle?
If I have a bottle of Hydrogen and a bottle of Oxygen, uncompressed, how would I vacuum all of the gas inside a sobe or snapple bottle out, and compress oxygen or hydrogen into it with equipment that can normally be found, like an air compressor. Because I do not have any of the special scientific lab equipment, is there any way to vacuum all the gas out of bottles, and compress the two gases that i have stored in 2 bottles in. Also, would working under water, like keeping the machine above water, but the tubes, bottles, etc under water be better, since the air wouldnt escape? If any is able to tell me a way to do it with normal equipment that I could find normally, I would greatly appreciate it. Also, this is for an experiment where I want to separate the gases until I use them, at which time i use the compression of the air to shoot out 2 streams of the gases and light it with a fire, to create a space shuttle rocket like effect.
admin answers:
Ok… This may or may not work, but here’s my shot at it.
1.) Cool the bottles of hydrogen and oxygen as cold as you can possibly get them. Gasses take up less volume under low temperatures.
2.) Hydrogen transfer is easy – it’s lighter than air, so open the bottle upside-down, put your receptacle against the opening, then flip. The hydrogen will displace the air in the bottle. Oxygen transfer is somewhat more difficult. You may want to start with oxygen – a plastic syringe may be sloppy, but effective. Alternatively, keep your gasses in plastic bottles, put a balloon over the top, and squeeze the gas into the balloon. You can then freeze the balloon, and transfer it into your new bottle.
3.) Warm the bottle as far as you feel comfortable. Warm gasses take up more room, and since your space is limited in your new bottle, this will cause it to compress. Remember, hydrogen in the presence of oxygen is very very unstable, and becomes even less stable when compressed. Glass = shrappenel.
You won’t get compression through the roof, but it’ll be enough for a little show.
Donna asks…
Can hydrogen be produced from waste produced in chocolate factories?
Please specify what the waste is made of, how the hydrogen can be released and some interesting websites regarding this topic. Thanks!
admin answers:
I have no knowledge of chocolate factories and waste. But most organic waste decomposition produces methane CH4
John asks…
What is the strongest evident for hydrogen bonding?
1. Hydrogen has an extremely low electronegativity.
2. Hydrogen is able to accept or donate electrons, so it is the most versatile atom in the periodic table.
3. Hydrogen can be considered either a metal of nonmetal.
4. The boiling points of NH3, H20, and HF are abnormally high compared with the rest of the hyrides in their respective periods.
admin answers:
4 is correct since the hydrogen bound exists there is a great attraction between molecules and they remin near one another and itis difficult to boil since boiling means separating the molecules
Sandy asks…
When a hydrogen atom absorbs a photon, what is it that causes the increase in energy?
Just trying to find out, does the photon absorption cause the hydrogen atom’s proton and neutron to be held together with a stronger force? If so what kind of force is it? Is it an electromagnetic force?
admin answers:
Nothing happens per say in the nucleus.
Taking the electron transitions associated with visible and ultraviolet interactions with matter as an example, absorption of a photon will occur only when the quantum energy of the photon precisely matches the energy gap between the initial and final states. In the interaction of radiation with matter, if there is no pair of energy states such that the photon energy can elevate the system from the lower to the upper state, then the matter will be transparent to that radiation.
If an electron is already in an excited state (an upper energy level, in contrast to its lowest possible level or “ground state”), then an incoming photon for which the quantum energy is equal to the energy difference between its present level and a lower level can “stimulate” a transition to that lower level, producing a second photon of the same energy.
When a sizable population of electrons resides in upper levels, this condition is called a “population inversion”, and it sets the stage for stimulated emission of multiple photons. This is the precondition for the light amplification which occurs in a laser, and since the emitted photons have a definite time and phase relation to each other, the light has a high degree of coherence.
Thomas asks…
How much hydrogen and oxygen is contained in 1Cup of water?
How much Hydrogen and oxygen is contained in 1 cup of water ,approximately? counting in that water is H2O.
admin answers:
2 H’s per 1 O…so you need 3 thirds.
2/3 hydrogen, 1/3 oxygen.
James asks…
When stars burn hydrogen to produce energy, how many hydrogen nuclei does it take to yield one nucleus?
When stars burn hydrogen to produce energy, how many hydrogen nuclei does it take to yield one helium nucleus? Does the final helium nucleus have more or less mass than the total mass hydrogen nuclei it is made of?
admin answers:
There is more than one process that goes on in stars. It depends on the type and age of the star, and I don’t know what all else.
Http://en.wikipedia.org/wiki/Nuclear_fusion#Astrophysical_reaction_chains
____________________________________
Starski said, “4 hydrogen nuclei (a.k.a. Protons) combine to form 1 helium nucleus.”
That’s the net result, but if you look at the diagram on the page that I cited above, you will see that the actual process is somewhat more complicated than what you describe.
Powered by Yahoo! Answers