To convert mass to atoms: Find the atomic mass of the element in the substance. You can find atomic masses on the periodic table. Understanding alcoholism al anon pamphlet. Lithium's atomic mass is 6.9 grams (round if you need to) Then find the mass of the substance in grams. You have 18.2 grams of a sample of Lithium. The mass of the sample is multiplied by 6.02 * 1023 and divided by the atomic mass. Mass of sample in grams * (6.02 * 1023 atoms) / (atomic mass) = # atoms in grams 18.2 grams * (6.02 * 1023 atoms) / (6.9 grams) = 1.59 * 10 24 atoms The number 6.02 * 1023 is Avogadro's Constant which is the amount of atoms (or molecules) in one mole. See Web Links. We assume you are converting between atom and mole. You can view more details on each measurement unit: atoms or moles The SI base unit for amount of substance is the mole. 1 atoms is equal to 1.27E-24 mole. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between atoms and moles. ![]() See the Web Links for 'Answers.com: Atomic mass' to the bottom for the answer. Atomic mass refers to the weight of an atom when compared to aribitary figure that is relative to other atoms. The unit used is 1/12 the weight of a carbon atom (the most prolific around). Atomic mass is used to avoid using very small numbers that would otherwise result if you try to physically weigh an atom. Note that atomic mass is not the same thing as atomic weight. See the Related Question to the left for more information. Moles to atoms you multiply the number of moles by avogadros number ex: 1.32 mol x (6.022 x 10^23 atoms)/mol mass to atoms you multiply the mass (in grams) times the molar mass of the element or compound (ex: N 14.01 mols/gram) then times avogadros number once you have the moles. Ex: 45.6 g N x (14.01 mol/gram) x (6.022 x 10 ^23 atoms/mol) if it's a compound instead of an element, find the molar mass of the compound (the molar masses of all the elements in it added up) and multiply by it. ------------------------- Actually you are wrong, from mass to atoms you need to take the initial mass divide by the gram of the element that you are doing and multiply by the Avogadros number. ›› Convert atom to mass Please enable Javascript to use the unit converter Error: We couldn't find a conversion between atoms and mass Were you trying to convert units? Having trouble with a unit conversion? Try doing a, or posting to the. You may also be looking for a. You can also if you find any missing units or errors. ›› Want other units? Enter two units to convert From: To: ›› Definition: Atom This site uses an exact value of 6.0221415 x 10 23 for Avogadro's number. This is the number of atoms in 1 mole of a chemical element. ›› Metric conversions and more ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3', 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!
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