How Many Atoms of Hydrogen Are There in 18 Grams of Water?

Answer

18 grams of water contain 2 moles of hydrogen. I mole of hydrogen contains 6.02 x 10^23 hydrogen atoms. The two moles in 18 grams of oxygen therefore contain 1.20 x 10^24.
Q&A Related to "How Many Atoms of Hydrogen Are There in 18 Grams..."
18x6.6x10 22
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240.00 grams H2O x (1 mole H2O / 18.00 grams H2O) x (2 mole H/ 1
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answering your question "how many grams" and not some other one. 2/18 * 18.6 = 2.1 grams of Hydrogen atoms= answer. water weighs 18 and weight of the 2Hs is 2. Source(s)
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The covalent bonds that oxygen shares with hydrogen gives it a full outer shell of 8 electrons.
http://wiki.answers.com/Q/How_many_electrons_are_i...
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