how much does hydrogen cost?
147331
It depends greatly on how much you want, how pure you want it, where you are going to get it, what its physical state it, ...\n\nThe cost of Hydrogen will varry quite  abit depending on whether you want 100% pure liquid Hydrogen bought from some chemical supplier, or Hydrogen you wake by running a current through salt water in your kitchen.
88449
Pure chlorine gas in a pressure tank suitable for laboratory experimentation purposes cost about $ 0.13 to $1.00 per 100 grams depending upon purity.\n\nWater treatment facilities typically use chlorine in 150-lb cylinders or one-ton containers. Some large systems use 90-ton railroad tank cars.  A one ton container costs about $420.00 in 1999.  It would be more expensive today.
491732
First, commercial production of methanol is accomplished by the catalytic reduction of CO according to the following equation:\n\nCO + 2H2 ---> CH3OH\n\nSo yes, it's very possible to add carbon to your hydrogen to make methanol. In fact, it's constantly being done on the industrial scale. Most catalysts are based on a mixture of Cu, ZnO and alumina, although the precise details of the best catalysts are something of a trade secret.\n\nThere are still a couple of things to keep in mind with your proposal. The first is that H2 is *very* expensive to make by electrolyzing water. If you use an applied potential of 2.5V it will take around around 7.4 kWh of electricity to electrolyze 1 liter of H2O (assuming I did my math right). That's a *lot* of expensive electricity to replace only a liter or so of conventional fuel. Unfortunately, until technology improves there is really isn't any practical way to generate that much electricity by solar or wind power.\n\nWhile I am a big proponent of alternative fuels, it's often not as simple as it seems to replace traditional fossil fuels. It's generally easy to convert energy from one form to another (for example electricity to hydrogen to methanol), but it doesn't solve the basic problem of getting the energy to begin with. Still, it's a problem we need to work on since almost all of our energy comes from non-renewable resources.
1005081
The average price in the U.S is $3.50 per gallon.  About the same as what you are paying in India.
675961
Hydrogen is a combustible gas and can be used to generate energy.  Hydrogen powered cars are presently being researched and are called 'fuel cell cars'.\n\nYou can get hydrogen from brine (salt water) by the process of electrolysis.  To find out more about this see:\nhttp://www.scienceaid.co.uk/salt.html
970781
Potential of Hydrogen.
1031597
That 1kg of hydrogen would convert to about 0.954 kg of helium, the other 0.046 kg is changed to energy.\n\nE=MC^2\nM=0.046 kg\nC=300,000,000 m/s\nE=4.14X10^15 joules\n  = 1,150,000,000 Kilowatt-hours
601656
are  you doing some kind of project on fuel cells?I did a project on hydrogen 3 years ago and had the same problem .What i did at the end was made the design look like a fuel cell(the pem and catalysts) kept some normal cells underneath it and connected it to a bulb.Believe me , everyone thought it was a real fuel cell
335008
Fuel cells are like a battery that never dies.\nYou just keep adding fuel.\nAnd you dont keep throw away dead battery with toxic metals.\n\nBut the cost is not practical for now, but i think it is the future when all the Engineering issues are worked out.
367911
For example, hydrogen burns in oxygen to form water vapor. \n\n2H2(g) + O2(g) -> H2O(g) \nHow much hydrogen must be burned to form 1.00 L of water vapor at 1.00 atm pressure and 3000C? \nTo work this problem, we need to figure out how many moles of water vapor we need to form. Use the ideal gas equation to compute this: \n\nPV = nRT \n1.00 atm * 1.00 L = n*0.0821 (L*atm/mol*K)* 473 K \nn = 0.0258 moles \nThus, we need to form 0.0258 moles of water. Now it's just a basic stoichiometry problem: for each mole of water formed, you need 2 moles of hydrogen gas, so 0.0258 moles water * 2 moles H2/1 mole water = 0.0516 moles of hydrogen \n\n=====================================================\n\nthis will help you a lot\n\nhttp://www.chem.hawaii.edu/asato161/Ch10NotesP2.pdf#search='Gas%20Stoichiometry%20PV%3DnRT'\n\nhttp://members.aol.com/profchm/gasstoic.html
808490
I hope you are EUR, because I'm not converting this....\nThe market price of pure neon gas is 165.30 € per cubic-decimeter in small quantities (<1 cu-dm),\nand about 2.81 € per cu-dm in large quantities (> 300 cu-dm).
443005
The infrastructure to deliver teh hydrogen isn't set up yet.  But the biggest problem is where do you get the hydrogen?  It's not like you can sink a hydrogen well.  You need to liberate it from some other molecule like water and that takes a lot of energy.  Right now the cheapest form of energy is fossil fuel so we would just burn oil to liberate the hydrogen.  \nIt is also a problem to transport.  Needs to be highly compressed or it takes up a lot of space.  That takes more energy.  It is a bit dangerous to carry a compressed gas around.  The tank could rupture but don't worry about H-bomb issues.  Fusion isn't easy to do.  And the Hindenburg was more of a problem with the skin of the blimp.  As far as explosion I would rather be in a car accident with hydrogen then gas.  Once the collision is over the hydrogen will float up and away.  The gas will pool around all the hot engine parts and electric sparks and will be more likely to catch afire and burn you.\n\nThe up side of hydrogen is that it can be reacted in a fuel cell.  This is much more efficient then an internal combustion engine.
561309
That is an excellent and timely question.  But the answer must have two parts when you say cheap, realisitic & practical method.  First, ou can split water (H2O) into hydrogen and oxygen (both having commercial value) by electrolysis using simple electrodes and an electric current.  But you must supply the energy.  If you use oil or gas that competes with the existing and growing demand for fuel and heating gas.  However, power can be supplied from coal (in expensive poluting power plants) or from solar energy.  Daystar is starting production of a flexible film photovoltaic solor cell that is expected to produce cheap electricity.  If almost all the roofs in the country were shingled with their product the hydrogen economy would be a cinch (and Daystar would be very happy!).  Secondly, there are also plans to design and construct huge nuclear power plants that operate so hot that they can directly dissociate water into hydrogen and oxygen.  The plants would be very expensive but the hydrogen (and oxygen) should be relatively cheap and no greenhouse gases would be produced.
645274
At standard temperature and pressure hydrogen is a colorless, odorless, nonmetallic, univalent, tasteless, highly flammable diatomic gas. Hydrogen is the lightest and most abundant element in the universe. It is present in water, nearly all organic compounds and in all living organisms. Hydrogen is able to react chemically with most other elements. Stars in their main sequence are overwhelmingly composed of hydrogen in its plasma state. The element is currently used primarily in fossil fuel upgrading. Other uses include as a lifting gas, as an alternative fuel (see Hydrogen economy), and more recently as a power source in fuel cells.\nHydrogen can be prepared in several different ways but the economically most important processes involve removal of hydrogen from hydrocarbons. Commercial bulk hydrogen is usually produced by the steam reforming of natural gas. At high temperatures (700–1100 °C), steam (water vapor) reacts with methane to yield carbon monoxide and H2.\n\nCH4 + H2O → CO + 3 H2 \nThis reaction is favored at low pressures but is nonetheless conducted at high pressures (20 atm) since high pressure H2 is the most marketable product. One of the many complications to this very optimized technology is the formation of coke or carbon:\n\nCH4 → C + 2 H2 \nConsequently, steam reforming typically employs an excess of H2O.\n\nAdditional hydrogen from steam reforming can be recovered from the carbon monoxide through the Water gas shift reaction:\n\nCO + H2O → CO2 + H2 \nOther important methods for H2 production include partial oxidation of hydrocarbons:\n\nCH4 + 0.5 O2 → CO + 2 H2 \nand water electrolysis.\n\nIn the laboratory, H2 can be generated by treatment of many metals with acids or base.\n\nZn + 2 H+ → Zn2+ + H2 \n2 Al + 6 H2O → 2 Al(OH)3 + 3 H2 \n\n\n\nA hydrogen economy is a hypothetical future economy in which the primary form of stored energy for mobile applications and load balancing is hydrogen (H2). In particular hydrogen is proposed as a fuel to replace the gasoline and diesel fuels currently used in automobiles.\n\nHydrogen production is a large and growing industry. Globally, about 50 million metric tons of hydrogen were produced in 2004; the growth rate is about 10% per year. The energy in the current flow corresponds to about 200 gigawatts. Within the U.S., production was about 11 million metric tons, or 48 GW (10.8% of the average U.S. total electric production of 442 GW in 2003). Because hydrogen storage and transport are so expensive, most hydrogen is currently produced locally, and used immediately, generally by the same company producing it. As of 2005, the economic value of all hydrogen produced is about $135 billion per year.\n\nCurrently, hydrogen production is 48% from natural gas, 30% from oil, and 18% from coal; water electrolysis accounts for only 4%.\n\nThere are two primary uses for hydrogen today. About half is used to produce ammonia (NH3) via the Haber process, which is then primarily used directly or indirectly as fertilizer. The other half of current hydrogen production is used to convert heavy petroleum sources into lighter fractions suitable for use as fuels. This latter process is known as hydrocracking. Because the world population and the intensive agriculture used to support it are both growing, ammonia demand is growing. Hydrocracking represents an even larger growth area, as rising oil prices encourage oil companies to extract poorer source material, such as tar sands and oil shale.\n\nStorage is the main technological problem of a viable hydrogen economy. Some attention has been given to the role of hydrogen to provide grid energy storage for unpredictable energy sources, like wind power. The primary difficulty with using hydrogen for grid energy storage is that converting power to hydrogen and back is not cheap.\n\nHydrocarbons are stored extensively at the point of use, be it in the gasoline tanks of automobiles or propane tanks hung on the side of barbecue grills
337088
try www.airgas.com  and not a bad price either.
147599
it's vital in organisms. hydrogens make up the three most important types of molecules to human beings: carbohydrates, proteins, and fats.\n\nthey are trying to develop cars that run on hydrogen fuel.
687068
...And by "Hydro" you mean water? or Hydrogen?\n\nWhat type of power output do you need/want?\nHow much are you willing to spend?