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How many hydrogen atoms are generated from 1 liter of water by electrolysis?
Wiki User
∙ 11y ago
The minimum voltage necessary to generate hydrogen and oxygen from water by electrolysis is 1.23 V. It depends on how you do it if it will take that much or more (if you don't use the correct electrode, it will take much more, but never ever less).
How much power it takes depends on how much water you want to split!
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoMaking water by electrolysis occurs in the following balanced reaction:
2H2O ---> 2H2 + O2
Therefore there is a 1-to-1 ratio (really 2-to-2, but that's the same) of moles of water to moles of hydrogen gas in the balanced reaction. Therefore the number of moles of hydrogen made is equal to the number of moles of water electrolyzed.
We must do the calculation using moles, not grams or kilograms. The molecular weight of H2 is 2.016 grams per mole. To find the number of moles of H2 in 1 kilogram:
1000 grams ÷ 2.016 grams/mole = 496.081 moles of H2
Because of the 1-to-1 stoichiometry of the balanced reaction, it requires 496.081 moles of water. The molecular weight of water is 18.015 grams/mole. Therefore 496.081 moles of water will weigh:
18.015 grams/mole x 496.081 moles = 8936.80 grams = 8.9368 kilograms
That is also equal to 8.9368 liters of water (exactly if at 4 °C).
See the Related Questions to the left for more information about how to solve this type of stoichiometry problem.
Wiki User
∙ 16y agoFor answers to any of your hydrogen-related questions, just ask the MIT PhD who currently runs a company that manufactures hydrogen production technology. His company is called Avalence (www.avalence.com) and his name is Marty Shimko. His contact information is on the website under contact. Enjoy! For answers to any of your hydrogen-related questions, just ask the MIT PhD who currently runs a company that manufactures hydrogen production technology. His company is called Avalence (www.avalence.com) and his name is Marty Shimko. His contact information is on the website under contact. Enjoy!
Wiki User
∙ 11y ago1 liter of water is 1000 grams of water. And 1000 grams water DIVIDED BY 18.015 grams per mole EQUALS 55.5093 moles. And 55.5093 moles TIMES 6.0221 x 10^23 atoms per mole = 3.3428 x 10^25 molecules of water. Now, there are 2 hydrogen atoms in each molecule of hydrogen gas (they form pairs), and there are also 2 hydrogen atoms in each water molecule. So electrolyzing 1 liter of water will produce 3.3428 x 10^25 hydrogen gas molecules (the number of actual hydrogen atoms is twice that, or 6.6856 x 10^25 hydrogen atoms). The 10^25 means 10 raised to the power of 25. You could also write this number as 3.3428E25 molecules. To put that into perspective, that is 33.43 trillion trillion hydrogen gas molecules.
Wiki User
∙ 10y agoFirstly you need to know what you are electrolysing. then you need to know the overpotential, and pH (if water) and quite a few other things (i.e. electrode active area/type of material). There are many variables
Wiki User
∙ 12y agoyes that's one of the sustances.
when you electoryse salt water, you basically send a current through it and this produces 3 products: hydrogen, chlorine, sodium hydroxide.
Wiki User
∙ 12y agoAt 100% efficiency it would require 39 Kwh of electricity to produce 1 Kg of Hydrogen. Efficiencies of around 90% are possible under some conditions.
Wiki User
∙ 14y agoOut of every 3 liters of water 2 should be hydrogen. Do the math.
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How many btu's in one liter of diesel?
HHO as a name is misleading. However, producing gas from the electrolysis of water is definitely not a myth, it's also known as Hydroxy or Brown's Gas. This gas is generated by the electrolysis of water. The "myth" part is usually related to the incorrect assumption that HHO refers to a chemical compound (like H20) and also to how much energy one has to put in to the system to make the electrolysis happen Conventional physics says that you have to put more energy into the electrolysis than you get out in HHO (i.e. the efficiency of electrolysis is less than 100%). But there's nothing to stop you storing the gases produced (although proceed with caution - the stuff is explosive and toxic!!!). Unfortunately I don't have the answer to how many BTU in 1 liter of HHO - but I'd like to know too. The closest I have to an answer is about 2000 BTU per cubic foot. This is based on the unqualified assumption that Hydroxy contains 60,000 kJ/m3 of energy (unqualified in that I found this via a google search and no reference was given for that number). For comparison Natural Gas has about 1000 BTU / ft3 & Propan about 2500 BTU / ft3. 28.32 Liters to 1 cubic foot. So, if 1 cu.ft. of HHO equals 2000 BTU's (est), then 1 liter would produce 70 btu's
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Converting propane gas to liquid propane is a state change, not a chemical one. Therefore there is no loss of BTU/liter generated when it is burned.
Which is more a pint or liter?
1 liter = 2.11 pints 1 pint = 0.47 liter
Which is bigger a liter or pint?
1 liter = 2.11 pints1 pint = 0.47 literliters1 liter = 2.11 pints1 pint = 0.47 Liter
How many pint is a liter?
1 liter = 2.11 pints 1 pint = 0.47 liter
How many liters of hydrogen gas are in a liter of liquid hydrogen?
depends
1 liter of hydrogen is equal to how many kg?
It depends on the temperature and pressure of hydrogen or to have the hydrogen density value.
How much mileage get from 1 liter hydrogen fuel?
one mile
How many atoms in a 2 liter bottle of water?
A 2 litre bottle of water contain 2 007,38.10e23 atoms.
How many btu's in one liter of diesel?
HHO as a name is misleading. However, producing gas from the electrolysis of water is definitely not a myth, it's also known as Hydroxy or Brown's Gas. This gas is generated by the electrolysis of water. The "myth" part is usually related to the incorrect assumption that HHO refers to a chemical compound (like H20) and also to how much energy one has to put in to the system to make the electrolysis happen Conventional physics says that you have to put more energy into the electrolysis than you get out in HHO (i.e. the efficiency of electrolysis is less than 100%). But there's nothing to stop you storing the gases produced (although proceed with caution - the stuff is explosive and toxic!!!). Unfortunately I don't have the answer to how many BTU in 1 liter of HHO - but I'd like to know too. The closest I have to an answer is about 2000 BTU per cubic foot. This is based on the unqualified assumption that Hydroxy contains 60,000 kJ/m3 of energy (unqualified in that I found this via a google search and no reference was given for that number). For comparison Natural Gas has about 1000 BTU / ft3 & Propan about 2500 BTU / ft3. 28.32 Liters to 1 cubic foot. So, if 1 cu.ft. of HHO equals 2000 BTU's (est), then 1 liter would produce 70 btu's
PH -logH plus where H plus is the hydrogen ion concentration measured in miles per liter. What is the pH of a solution whose concentration of hydrogen ions is 6.98 10-7 moles per liter?
The pH is 6,15.
How many hydrogen can be extract from 1 liter water?
Liquid hydrogen (LH2) tanks can store more hydrogen in a given volume than compressed gas tanks. The volumetric capacity of liquid hydrogen is 0.070 kg/L, compared to 0.030 kg/L for 10,000-psi gas tanks
How many grams in a 1 liter?
mass = volume * density Grams are a measure of mass. Liters are a measure of volume. You can use the internet to look up the density for the gas to which you are referring. For instance, hydrogen's density is .0000899 g/cm^3 (grams per cubic centimeters). One liter is 1000 cm^3. 1000 cm^3 * .0000899 g/cm^3 = 0.0899 g Therefore a liter of hydrogen contains about 0.09 grams of hydrogen.
What is a five letter word ending in H meaning the weight of a liter of hydrogen?
The answer is crith.It's five letters, ending in H. Crith refers to the weight of a litre of hydrogen.
Why does density decrease when air is expanded?
Density is a measure of the amount (as a mass) of something for a given volume (liters).So, for example, there may be 1 billion atoms in 1 liter of air. If this volume of air expands, then the individual atoms will become further apart, and you will therefore have fewer atoms in the 1 liter of air, and there fore it will be less dense.
1 Liter of Hydrogen gas equals how many cubic meter?
1 Liter = 0.001 cubic meter. It doesn't matter what it has or doesn't have in it, or even if it's a total vacuum.
What is the definition for pH?
pH is equal to the negative log of the concenetration of hydrogen ions in a solution. More simply, pH=-log[H+]. The hydrogen ion concentration is in moles/liter.
