Answered

Get reliable answers to your questions at Westonci.ca, where our knowledgeable community is always ready to help. Join our Q&A platform and connect with professionals ready to provide precise answers to your questions in various areas. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

if you have 100.0 grams of carbon and 100.0 grams or iron, which sample will contain more atoms

Sagot :

anijlin
first you need to solve for the number of moles in each. 
1 mole of anything = atomic mas of that element (g)

Carbon has an atomic mass of 12.0107
1 mole of Carbon = 12.0107 g

Iron has an atomic mass of 55.845
1 mole of Iron = 55.845 g

now convert each from grams to moles 
(grams of Carbon cancel and you are left with moles of carbon)
100.0 g Carbon x 1 mol Carbon  = 8.326 mol Carbon
       12.0107 g Carbon

(grams of Iron will cancel and you are left with moles of iron)
100.0 g Iron x 1 mol Iron = 1.791 mol Iron
      55.845 g Iron

now we can use avogadro's number to solve for the amount of atoms in each 
1 mol = 6.02x10^23 atoms

8.326 mol Carbonx 6.02 x 10^23 atoms  = 5.012 x 10^24 atoms Carbon
        1 mol Carbon

1.791 mol Iron x 6.02 x 10^23 atoms  = 1.078 x 10^24 atoms Iron
        1 mol Iron

5.012 x 10^24 atoms Carbon > 1.078 x 10^24 atoms Iron
We appreciate your time on our site. Don't hesitate to return whenever you have more questions or need further clarification. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.