How many moles of hydrogen atoms are present in one mole of water?
There are two moles of hydrogen atoms and one mole of oxygen atoms in one mole of water. It takes two hydrogen atoms and one oxygen atom to make one molecule of water.
In each molecule of water there is one hydrogen atom. In 2.69 moles, there are 8.124 E23 molecules, so there are the same number of atoms of hydrogen present.
72 grams of water has 4 moles. As every water molecule has two hydrogen atoms, there are 8 moles of hydrogen atoms. It is equivalent to 4.818 x 1024 atoms.
H2O is water. One mole of water contains 2 moles of hydrogen atoms. Therefore, 10.7 moles of water contain 21.4 moles of hydrogen atom.
3.65 grams of water is equal to .203 moles of H2O. This means there is also .203 moles of H2 present, or .408 grams.
8 moles of Hydrogen molecules reacts with 4 moles of Oxgen molecules to produce 8 moles of water 8 moles of Hydrogen atoms reacts with 4 moles of Oxgen atoms to produce 4 moles of water
There are two moles of hydrogen molecules and 4 moles of hydrogen atoms.
A sample of water contains 3.6 moles of hydrogen atoms How many molecules of water are present in this sample?
3.6 moles hydrogen atoms (1 mole water/2 mole H)(6.022 X 1023/1 mole water molecules) = 1.1 X 1024 molecules of water =======================
Both oxygen and hydrogen under normal conditions contain two atoms per mole. 4 moles of oxygen therefore contain 8 moles of oxygen atoms, which is sufficient to make 8 moles of water, since water contains only one oxygen atom per molecule. The 16 moles of hydrogen contain 32 moles of hydrogen atoms. Only 16 moles of hydrogen atoms are needed to make 8 moles of water, which contains 2 hydrogen atoms per mole. Therefore, oxygen… Read More
4 moles of hydrogen atoms
1 mole of water is 18g. 36g of water is thereforeequivalent to 2 moles. 2 moles of water contains 4 moles of hydrogen and 2 moles of oxygen and so there are6 moles of atoms in 2 moles of water. 6 moles of atoms x (3.6x10^24) = 36.1x10^24 atoms
Well if one mole of water = 2 moles of hydrogen and 1 mole of oxygen, than 2moles of water = 4 moles of hydrogen and 2moles of oxygen.
3 moles of water molecules. 6 moles of hydrogen atoms. 3 moles of oxygen atoms. 30 moles of electrons. 30 moles of protons. etc.
75g/18gmol-1 = 4.167 moles of water molecules, composed of 4.167 moles of oxygen atoms and 8.334 moles of hydrogen atoms.
0.50 moles of Hydrogen
there are 2 atoms of hydrogen in water
One. A mole is a measure of the number of 'objects' in a sample. Since each water molecule has 1 oxygen atom (H2O), the number of oxygen atoms is the same as the number of water molecules. However, for Hydrogen, there are 2 H atoms for every water molecule, so there would be 2 moles of Hydrogen in 1 mole of water.
There are 2 hydrogen atoms present in each water molecule. This can be seen from the formula for water H2O -- this tells us there are 2 atoms of hydrogen combined with 1 atom of oxygen
There are two hydrogen atoms present in H2O.. the 2 is how many hydrogen atoms there are. There is only one oxygen atom.
Avogadro's number of 6.02x10^23 is the quantity of particles in one mole of any given. Similarly for each mole of water, or H20 there are 2 moles of hydrogen atoms. 6 moles of water thus contains 12 moles of hydrogen. Multiplying 12 by Avogadro's number yields the solution of 7.2x10^24 moles of hydrogen.
Write out the equation first: 10H2 + 10O2 --> xH2O Since there are 2 moles of Hydrogen for every mole of Oxygen and equal moles of both are given, the Hydrogen limits the reaction as the limiting reactant. 10 moles of Hydrogen can make 10 moles of H2O with 5 moles of Oxygen left over. Think of it logically: H2 is two hydrogen atoms and water needs two hydrogen atoms, so it is a one-to-one… Read More
Water is 18 grams to the mole, so 5.3 moles of water is 95.4 grams. Hydrogen makes up 11% by mass of water, and 11% of 95.4 is 10.5 grams of hydrogen. That's about 10.5 moles of hydrogen, which at STP would be 235.2 liters. - - - - - Or we could go at it this way: The formula for water is H2O. At least that's what my chemistry teacher told me when he… Read More
2.60 moles H2O (2 moles H/1 mole H2O)(6.022 X 10^23/1 mole H) = 3.13 X 10^24 atoms of hydrogen
2.70 moles water (2 mole H/1 mole H2O)(6.022 X 10^23/1 mole H) = 3.25 X 10^24 atoms of hydrogen
200. The formula is for every 1 Oxygen atom, 2 Hydrogen atoms must be present in water. Otherwise you would produce H2O2 (you cannot make it HO because it is never found in molecules on it's own) which is bleach.
I assume you mean 0.5 grams water. 0.5 grams water (1 mole H2O/18.016 grams)(2 moles H/1 mole H2O)(6.022 X 10^23/1 mole H) = 3.3 X 10^22 atoms of hydrogen
There are 3 sextillion hydrogen atoms on 0.05g of water. The amount for 3.65 is very difficult to calculate.
What compound? Please copy your homework questions completely. How else can we help you cheat? To find the number of moles of oxygen (or any other element), multiply the number of atoms present on the molecule (in subscript) by the number of molecules present in the reaction (in standard script to the left of the molecule) In this case: 2 H2 + O2 --> 2 H2O On the reactant side (to the left of the… Read More
2 atoms (molecules) of hydrogen are needed to react with oxygen to form water.
2 Hydrogen atoms and 1 Oxygen atom= water molecule
2.08 moles H2O (2 moles H/1 mole H2O)(1.008 grams H/1 mole H) = 4.19 grams of hydrogen ===================
The molecular formula for water is H2O, so there would be 3 atoms present in one molecule of water (2 hydrogen, 1 oxygen).
3.6 x (6.022x10^23)
how many atoms are in 5.00 moles of water
H2O. Two atoms of hydrogen and one atom of oxygen.
The chemical formula of water is H2O, showing that each molecule contains two hydrogen atoms. The gram molecular mass of water is 18.016. Therefore, 52.0 grams of water contains 52.0/18.016 or about 2.886 moles of water. Avogadro's number is defined as the number of molecules per gram mole and is 6.023 X 1023 atoms, molecules or ions. Therefore, 2.866 moles contains: 2 X 2.866 X 6.023 X 1023 or 3.45 X 1024 hydrogen atoms, to… Read More
methane has one carbon atom and 4 hydrogen atom.....so one mole of methane contains one mole of carbon and 4 moles of hydroge......for simplicity...one mole of water has two moles of hydrogen and one mole of oxygen....
One mole of water contains two moles of hydrogen.
1 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… Read More
17,3 moles hydrogen
Pure water is composed of 1 oxygen atom and 2 Hydrogen atoms, hence H2O
Hydrogen. One Oxgen and two Hydrogen atoms are present in a water molecule, which has the formula H2O.
Since a water molecule, H2O, has exactly the same quantity of hydrogen atoms as a hydrogen molecule, H2, it follows that one mole of water can be decomposed into one mole of hydrogen gas.
10 moles of hydrogen
One. A water molecule consists of 3 atoms: one Hydrogen atom and two atoms of Oxygen.
Answer: 7 moles hydrogen and 3,5 moles oxygen.
18 moles of atomic hydrogen or 9 moles of molecular hydrogen is needed.
None. You need Oxygen to form water, not just Hydrogen.
An illustrative way to solve this problem. Density water: 1 gram/ml = X grams/1 ml = 18 grams water ================now, find amount atoms and from experience one sees that this will be Avogadro's number of atoms. 6.022 X 1023 atoms. total atoms water * molar ratio to get atoms hydrogen. Two hydrogen atoms in compound. 2 * 6.022 X 1023 = 1.204 X 1024 atoms hydrogen, which means 1.204 X 1024 electrons hydrogen =======================================================
Divide this number by 2 and that's your answer.