One mole of any substance contains 6.022x10 to the power of 23 molecules of that substance. A water molecule contains two hydrogen atoms so one molecule of water has 12.044x10 to 23 hydrogen atoms.
One mole of any substance contains about 6.022 x 10^23 "particles" of that substance. In the case of water, which is H2O, we'll have about 6.022 x 10^23 molecules of water in a mole of water. But to find the number of hydrogen atoms in a mole of water, we'll have to double the number of molecules in a mole of water. The reason for this is obvious; there are two atoms of hydrogen in one molecule of water. That means there are about 2 times 6.022 x 10^23 atoms of hydrogen in that mole of water, or about 1.2088 x 10^24 atoms of hydrogen in a 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.
There are two hydrogen atoms present in H2O.. the 2 is how many hydrogen atoms there are. There is only one oxygen atom.
One mole of water contains two moles of hydrogen.
One mole of water contains two moles of Hydrogen i.e.2 grams of hydrogen
1 mole of water contain 6,022140857.1023 molecules and each molecule contain 3 atoms.
6.023x10^23. Avogadros Number...
two
Quite a few! 871 grams water (1 mole H2O/18.016 grams)(2 moles H/1 mole H2O)(6.022 X 1023/1 mole H) = 5.82 X 1025 atoms of hydrogen ========================
25x(2/18)=2.78g of hydrogen 25x(16/18)=22.22g of oxygen
2 grams C27H46O (1 mole C27H46O/386.638 grams)(46 mole H/1 mole C27H46O)(6.022 X 1023/1 mole H) = 1 X 1023 atoms of hydrogen =====================
2.35 grams water (1 mole H2O/18.016 grams) = 0.130 moles water ===============
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.
No. A mole of hydrogen (in its normal form) weighs 2 grams. A mole of water weighs 18 grams.
Quite a few! 738 grams water (1 mole H2O/18.016 grams)(2 mole H/1 mole H2O)(6.022 X 10^23/1 mole H) = 4.93 X 10^25 atoms of hydrogen
2.08 moles H2O (2 moles H/1 mole H2O)(1.008 grams H/1 mole H) = 4.19 grams of hydrogen ===================
Quite a few! 871 grams water (1 mole H2O/18.016 grams)(2 moles H/1 mole H2O)(6.022 X 1023/1 mole H) = 5.82 X 1025 atoms of hydrogen ========================
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
36 grams
25x(2/18)=2.78g of hydrogen 25x(16/18)=22.22g of oxygen
150 grams NH3 (1 mole NH3/17.034 grams)(3 mole H/1 mole NH3)(1.008 grams/1 mole H)= 26.6 grams hydrogen=================17 g of ammonia has 3 g of hydrogen.So 150 g of ammonia will have 26.5 g of hydrogen
5.839 grams C8H8 ( 1 mole C8H8/104.144 grams)(8 mole H/1 mole C8H8)(6.022 X 1023/1 mole H) = 2.701 X 1023 atoms of hydrogen --------------------------------------------
31 grams CH2O (1 mole CH2O/30.026 grams)(2 mole H/1 mole CH2O)(6.022 X 1023/1 mole H) = 1.2 X 1024 atoms of hydrogen =======================
Balanced equation. 2H2 + O2 --> 2H2O 5 moles H2 (2 moles H2O/2 mole H2)(18.016 grams/1 mole H2O) = 90 grams of water ===============
The formula for Oxygen gas is O2, and the formula for water is H2O. Each molecule of Oxygen gas can produce 2 molecules of water (with enough Hydrogen, of course). So, 2.5 moles of Oxygen gas would be required to produce 5.0 moles of water.