anonymous
  • anonymous
An element has a mass of 9.1229*10^-23 g. Identify the element. I'm not sure where to begin to identify this element.
Chemistry
katieb
  • katieb
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Vocaloid
  • Vocaloid
Hm, the question is a bit unclear, but I would guess that 9.1229*10^-23g is the mass of one atom? in that case, multiply the mass of the atom by Avogadro's number (6.022*10^23) to find the mass of one MOLE of that element. Then, look at the periodic table to find which element matches with the element you have here.
anonymous
  • anonymous
@Vocaloid Yes, it is very unclear that's why I'm so confused. Yes, it is the mass of one of the element's atoms. So, I take \[\left( 9.1229*10^{-23} \right)*(\frac{ 6.022*10^23 }{ 1atm })\] and get the mass of one element to compare to the periodic table?
Vocaloid
  • Vocaloid
yup! once you multiply those two numbers you will get the mass of one mole

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Vocaloid
  • Vocaloid
so what do you get when you multiply (9.1229*10^-23)*(6.022*10^23)?
anonymous
  • anonymous
Thank you! I got 54.9381038
Vocaloid
  • Vocaloid
Yup, so which element is it?
anonymous
  • anonymous
Manganese.
Vocaloid
  • Vocaloid
great! you did very well
anonymous
  • anonymous
Thank you so much for helping me!

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