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The mass of an atom of hydrogen is 1.008 u. What is the mass of 18 atoms of hydrogen. |
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Answer» Mass of 1 atom of hydrogen = 1.008 u ∴ Mass of 18 atoms of hydrogen = 18 × 1.008 u = 18.144 u ∴ The mass of 18 atoms of hydrogen = 18.144 u |
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