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anonymous

  • one year ago

http://i.imgur.com/UB7Zdw7.png How would I solve for the mass of the compound and mass of C? I also dont see how H=2.02 when in the formula there are 20 atoms of H. Thanks

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  1. anonymous
    • one year ago
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    Atomic mass of carbon x 9

  2. anonymous
    • one year ago
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    That doesn't work

  3. anonymous
    • one year ago
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    Yes it does.

  4. anonymous
    • one year ago
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    Atomic mass of H x 2=2.02g

  5. anonymous
    • one year ago
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    It says its wrong.

  6. anonymous
    • one year ago
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    What did you put for the mass of C then?

  7. anonymous
    • one year ago
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    9*12.011=108.099

  8. anonymous
    • one year ago
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    And your compound?

  9. anonymous
    • one year ago
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    Compound mass?

  10. anonymous
    • one year ago
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    108.099+2.02=110.12

  11. anonymous
    • one year ago
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    You forgot to to add the atomic mass of oxygen There is only 1 oxygen in the compound.

  12. anonymous
    • one year ago
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    Thats a 0 is H subscript 20

  13. anonymous
    • one year ago
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    Are you the one that put H=2.02 g and got it right? Or is it automatically put in like that?

  14. anonymous
    • one year ago
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    Or it can be wrong?

  15. anonymous
    • one year ago
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    Its automatically 2.02

  16. anonymous
    • one year ago
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    If you put H=2.02g then erase it and multiply the atomic mass of H x 20

  17. anonymous
    • one year ago
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    you can't change anything thats automatically there

  18. anonymous
    • one year ago
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    atomic mass of H x 20=20.16/2.02=10 atomic mass of C x 9=108.09/10=10.80

  19. anonymous
    • one year ago
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    Try it now.

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