anonymous
  • anonymous
How many atoms are there in 8.3 g Si?
Chemistry
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Do you mean the number of moles?
anonymous
  • anonymous
No, I think that you have to convert from grams to moles to particles (atoms, molecules) I just don't remember whether to multiply or divide
anonymous
  • anonymous
well since g was given, in order to find the no. of moles, you need to find the molar mass of si ( just type it in on google). The formula is \[\frac{ mass}{ molar mass }\] and from there you can find the no. of molecules given \[\frac{ no. of moles }{ avogadros }\] by the way avogadros number is 6.02 \[\times 6.02\times 10^{23}\] that's about it!

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anonymous
  • anonymous
correction its one 6.02 forget about the other one
anonymous
  • anonymous
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anonymous
  • anonymous
When you're referring to mass/molarmass, the numerator would be the grams (8.3)? There fore the equation would be \[\frac{ 8.3 }{ 28.0855 }\] ?
anonymous
  • anonymous
yes correct!
anonymous
  • anonymous
Alright, thanks so much for everything! :D
anonymous
  • anonymous
your welcome! :)

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