Welcome to Westonci.ca, the place where your questions find answers from a community of knowledgeable experts. Connect with professionals on our platform to receive accurate answers to your questions quickly and efficiently. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.
Sagot :
Answer:
You use the fact that 1 mole of any substance contains exactly 6.022⋅1023 atoms or molecules of that substance - this is known as Avogadro's number. In your case, 1 mole of gold will have exactly 6.022⋅1023 atoms of gold.
So it would be answer 3690 atoms or 3.60x1025
The number of atoms of gold in 591 g has been [tex]1.81\;\times\;10^2^4[/tex] atoms. Thus, option B is correct.
The number of atoms in a mole of sample has been given by the Avogadro's law. According to the law, one mole of a substance has been equivalent to [tex]6.023\;\times\;10^2^3[/tex] atoms.
The mole of sample has been given as the mass of sample with respect to the molar mass. Moles have been expressed as:
[tex]\rm Moles=\dfrac{Mass}{Molar\;mass}[/tex]
Number of atoms in a sample
The mass of gold has been 591 g
The molar mass of gold has been 197 g.
Substituting the values for moles of gold:
[tex]\rm Moles=\dfrac{591 }{197 } \\Moles=3\;moles[/tex]
The available moles of sample has been 3 moles.
The number of atoms has been given by:
[tex]\rm 1\;moles=6.023\;\times\;10^2^3\;atoms\\3\;moles=6.023\;\times\;10^2^3\;\times\;3\;atoms\\3\;moles=18.1\;\times\;10^2^3\;atoms\\3\;moles=1.81\;\times\;10^2^4\;atoms[/tex]
The number of atoms of gold in 591 g has been [tex]1.81\;\times\;10^2^4[/tex] atoms. Thus, option B is correct.
Learn more about number of atoms, here:
https://brainly.com/question/4206478
Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.
