- #1

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## Homework Statement

Calculate the percentage of nitrogen in urea (H2NCONH2).

## Homework Equations

## The Attempt at a Solution

I tried and found %N = 46.66%

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- Thread starter chawki
- Start date

- #1

- 510

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Calculate the percentage of nitrogen in urea (H2NCONH2).

I tried and found %N = 46.66%

- #2

- 133

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That's the answer I get too. % N = [(molar mass N)(# N atoms in molecule)]/(molar mass of molecule)

- #3

- 510

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i got it by this law: 28/N% = 60/100%

therefore: N% = (28 X 100) / (60)

therefore: N% = (28 X 100) / (60)

- #4

- 133

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I like to show units, though, because it offers a good "check" if I need it and can keeps me from getting confused.

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