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How many moles of oxygen atoms are in 4 moles of H2O?

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2008-01-06 20:49:37
2008-01-06 20:49:37

4 moles of oxygen atoms are present in 4 moles of H2O

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4 moles of oxygen atoms (being present in 4 moles of H2O) and, so: 4 moles of oxygen atoms is 4*6.02*1023 = 24.1*1023 molecules ATOMS of oxygen

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2 Hydrogen atoms and 1 Oxygen atom= water molecule

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The molecular formula of water is H2O, showing that each molecule of water contains one oxygen atom. Therefore, 0.5 moles of water will contain 0.5 moles of oxygen atoms.

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5 moles H2O (1 mole O/1 mole H2O)(6.022 X 1023/1 mole O)(1 mole O atoms/6.022 X 1023)= 5 moles oxygen atoms=================( as you see this is a formal set up that you do not need to use fully as Avogadro's number is over itself as a form of one )5 moles H2O (2 moles H/1 mole H2O)6.022 X 1023/1 mole H)(1 mole H atoms/6.022 X 1023)= 10 moles hydrogen atoms====================

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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.

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3,45 grams of H2O contain 1,154.10e23 oxygen atoms.

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In excess quantity of hydrogen (H2) 5.0 moles water can be formed maximally from 2.5 mole oxygen,because 2.5 x 2 (atoms O per mole oxygen, O2) = 5.0 x 1 (atoms O per mole water, H2O), thus balancing this reaction for oxygen atoms (5 on both sides).

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divide this number by avagadros number to get moles. (5.16x1024)/(6.02x1023)=8.57mol of H2O as there are 3 atoms in each molecule there are 3x8.57=25.7 moles of atoms.

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This is one to one. 0.50 moles H2O (1 mole O/1 mole H2O) = 0.50 mole oxygen -------------------------

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4 moles also 2 moles of oxygen will be consumed

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You probably mean how many atoms are in H2O. A single molecule of H2O contains 2 atoms of Hydrogen and 1 atom of Oxygen.

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602,000,000,000,000,000,000,000 (6.02 X 10^23) Oxygen atoms.

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A molecule of water H2O contains 3 atoms, two of Hydrogen and one of Oxygen.

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NONE! H2O is Hydrogen and 2 parts Oxygen.

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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

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3. Two hydrogen atoms, one oxygen atom.

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There is 1 O atom in 1 H2O molecule thus there are 12 O atoms in 12 H2O molecules.

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There are two oxygen atoms in a carbon dioxide molecule and one oxygen atom in a water molecule.

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H2O (hydrogen & oxygen).


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