how many atoms are there in 1 gram of hydrogen
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6.022×10^23 atoms of hydrogen
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Because the molecular mass of Hydrogen is 1gram/mole, there is 1 mole of hydrogen in 1 gram of hydrogen atoms.For every mole, there are 6.02*10^23 atoms so in 1 gram of hydrogen there are 6.02*10^23 hydrogen atoms (in scientific notation) this is equal to602000000000000000000000hydrogen atoms.
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