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happykiddo

How do I figure out the number of atoms in element, when I know the molar mass is 3.30 ???

  • one year ago
  • one year ago

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  1. sara12345
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    whats the element ?

    • one year ago
  2. happykiddo
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    Krypton

    • one year ago
  3. sara12345
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    so you have 3.3 moles of Krypton, and you want to find how many atoms are there, is tha t right ?

    • one year ago
  4. happykiddo
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    Yes

    • one year ago
  5. sara12345
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    replace mole wid Avogadro number

    • one year ago
  6. happykiddo
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    Ok

    • one year ago
  7. sara12345
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    1 mole = 6.022 × 10^23 items

    • one year ago
  8. sara12345
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    just like, 1 dozen = 12 items

    • one year ago
  9. sara12345
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    3.3 moles of Kr = 3.3 x 6.022 × 1023 atoms

    • one year ago
  10. happykiddo
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    Thanks, a bunch. :)

    • one year ago
  11. happykiddo
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    We're did you get1023

    • one year ago
  12. happykiddo
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    Please answer me , I need some clarification .

    • one year ago
  13. sara12345
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    3.3 moles of Kr = \(3.3 \times 6.022 × 10^{23}\) atoms

    • one year ago
  14. sara12345
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    its like that

    • one year ago
  15. sara12345
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    \(1\ mole = 6.022 \times 10^{23} \) atoms

    • one year ago
  16. happykiddo
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    Oh oops ok thank you very much. :)

    • one year ago
  17. sara12345
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    wlc :)

    • one year ago
  18. happykiddo
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    So the answer is 19x10 to 23 atom According to significant figures

    • one year ago
  19. sara12345
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    you wanto show it in scientific notation ?

    • one year ago
  20. happykiddo
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    So the answer is 19 x 10 to 23 power According to significant figures

    • one year ago
  21. sara12345
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    \(3.3 \times 6.022 × 10^{23}\) \(19.8726 \times 6.022 × 10^{23}\) \(1.98726 \times 6.022 × 10^{24}\)

    • one year ago
  22. sara12345
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    thats scientific notation, we must change that 19.xxxx to 1.9xxxx

    • one year ago
  23. happykiddo
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    Oh yeah forget .....well really once again thank you.

    • one year ago
  24. sara12345
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    yw

    • one year ago
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