June 18, 2021, 10:17:05 PM
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### Topic: Empirical Formular  (Read 185 times)

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#### HotDwag

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##### Empirical Formular
« on: June 07, 2021, 07:45:27 AM »
An organic substance contains three elements: carbon, hydrogen, and nitrogen. The mass ratio of carbon to hydrogen is
4 : 1, and the mass percentage of nitrogen is 24%. Find the emperical formula of the organic substance.

#### HotDwag

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##### Re: Empirical Formular
« Reply #1 on: June 07, 2021, 08:53:49 AM »
Apologies about the typo, it is should be "The mass of carbon and nitrogen is 4 : 1"

#### Corribus

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##### Re: Empirical Formular
« Reply #2 on: June 07, 2021, 08:54:28 AM »
You have to show your work to receive help. This is a forum policy.

If you are stuck, consider that the empirical formula reflects the mole ratio. How do you convert between mass ratio and mole ratio?
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

#### mjc123

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##### Re: Empirical Formular
« Reply #3 on: June 07, 2021, 03:43:52 PM »
Quote
Apologies about the typo, it is should be "The mass of carbon and nitrogen is 4 : 1"
That is impossible. If N is 24%, C must be 96%! Was it right the first time? I can get a sensible answer for that.