Respuesta :

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100 atoms is the same as how many moles?

  nº atoms /avogadre number= nº of moles

  100/6,022x10^23=  1,66x10^-22 moles
 
the molar mass is: mass/moles

we know that the molar mass of carbon 12 it's the same as his atomic number, which is 12.

So, using the previous formula:   
 
12= mass/ 1,66x10^-22
mass= 1,992x10-21 grams of carbon 12


aksnkj

Answer:

The mass of 100 atoms of carbon-12 isotope is [tex]1.67377 \times 10^{-22} \texttt { g}[/tex].

Explanation:

Given carbon is carbon- 12 isotope. The number of atoms of carbon is 100.

Now, the mass of 1 carbon -12 atom is,

[tex]m=12\texttt { u}\\m=1.67377 \times 10 -24 \texttt{ g}[/tex]

So, the mass of 100 carbon-12 atoms will be,

[tex]M=100\times m\\M=100\times 1.67377 \times 10^ {-24} \texttt{ g}\\M=1.67377 \times 10^{-22} \texttt { g}[/tex]

Therefore, the mass of 100 atoms of carbon-12 isotope is [tex]1.67377 \times 10^{-22} \texttt { g}[/tex].

Fore more details, refer the link:

https://brainly.com/question/11673503?referrer=searchResults

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