If we know the molar mass of a certain aspect and also Avogadro"s consistent, just how have the right to we calculate the mass of a solitary atom? Do we have to multiply the molar mass via Avogadro"s constant?



For many atoms it"s around Ryan"s answer.

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E.g. Carbon-12:

$$fracce12 g~ceCpu1 mol~ceC imes fracpu1 mol~ceCpu6.022E23 atoms =pu1.993E-23 g//atom = pu1.993E-27 kg//atom.$$

That was the molar mass $M$ multiplied by $1/N_mathrmA$, wbelow $N_mathrmA$ is Avagadro"s consistent.

Therefore $M/N_mathrmA$ offers you a calculation for mass of an atom for the certain element.



The average mass of a single aspect is its atomic mass on the periodic table (measured in $puu$, the combined atomic mass unit). One $puu$ equates to about $pu1.661E-27 kg$.


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