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Sunshine447 Group Title

How many moles of tungsten atoms are in 4.8*10^25 atoms of tungsten? a. 800 moles b. 80 moles c. 0.13 moles d. 0.013 moles

  • 2 years ago
  • 2 years ago

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  1. Sunshine447 Group Title
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    @AccessDenied

    • 2 years ago
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    @ghazi

    • 2 years ago
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    @Preetha

    • 2 years ago
  4. ghazi Group Title
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    number of moles \[n=\frac{ w }{ m }\] but here you have been given atoms and one mole =6.022 *10^23 atoms there fore number of moles are \[n=\frac{ 4.8*10^{25} }{ 6.022*10^{23} }=79.707 \]

    • 2 years ago
  5. ghazi Group Title
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    @Sunshine447 hope that helps you

    • 2 years ago
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    @ghazi but how did you get 79.707?

    • 2 years ago
  7. ghazi Group Title
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    i think i made a mistake, its 7.9707 moles

    • 2 years ago
  8. ghazi Group Title
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    just a division of the numbers i have written above

    • 2 years ago
  9. Sunshine447 Group Title
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    not an answer....

    • 2 years ago
  10. Sunshine447 Group Title
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    my teacher said to round up, so i think 79.707 was correct....

    • 2 years ago
  11. ghazi Group Title
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    one mole has 6.02*10^23 atoms 1 atom is there in 1/6.02 *10^23 moles therefore 4.8 *10^25 will be in 4.8*10^25/6.02*10^25 and answer is B

    • 2 years ago
  12. ghazi Group Title
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    round it to nearest 10

    • 2 years ago
  13. ghazi Group Title
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    is that clear now? @Sunshine447 :D

    • 2 years ago
  14. Sunshine447 Group Title
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    yeah, thanks :D

    • 2 years ago
  15. ghazi Group Title
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    :)

    • 2 years ago
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