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atomic mass of Carbon C - 12, formula mass of Water H2O - 18, molecular mass of Nitrogen N2 - 28, molecular mass of Ozone O3 - 48, atomic mass of lead Pb - 207, formula mass of Hydrochloric Acid HCl - 36, formula mass of Magnesium Oxide MgO - 40, molecular mass of Hydrogen H2 - 2,
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