anonymous
  • anonymous
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
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Atomic mass of carbon x 9
anonymous
  • anonymous
That doesn't work
anonymous
  • anonymous
Yes it does.

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anonymous
  • anonymous
Atomic mass of H x 2=2.02g
anonymous
  • anonymous
It says its wrong.
anonymous
  • anonymous
What did you put for the mass of C then?
anonymous
  • anonymous
9*12.011=108.099
anonymous
  • anonymous
And your compound?
anonymous
  • anonymous
Compound mass?
anonymous
  • anonymous
108.099+2.02=110.12
anonymous
  • anonymous
You forgot to to add the atomic mass of oxygen There is only 1 oxygen in the compound.
anonymous
  • anonymous
Thats a 0 is H subscript 20
anonymous
  • anonymous
Are you the one that put H=2.02 g and got it right? Or is it automatically put in like that?
anonymous
  • anonymous
Or it can be wrong?
anonymous
  • anonymous
Its automatically 2.02
anonymous
  • anonymous
If you put H=2.02g then erase it and multiply the atomic mass of H x 20
anonymous
  • anonymous
you can't change anything thats automatically there
anonymous
  • anonymous
atomic mass of H x 20=20.16/2.02=10 atomic mass of C x 9=108.09/10=10.80
anonymous
  • anonymous
Try it now.

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