A compound is found to be.....Please show all work!
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A compound is found to be.....Please show all work!

[From: ] [author: ] [Date: 12-07-09] [Hit: ]
-1.Find the mass of each element and convert to moles nitrogen: (1.63 g x 0.3045) / 14.0 g/mol=x oxygen:(1.63 g x 0.......
A compound is found to be 30.45% N and 69.55% O by mass. If 1.63g of this compound occupies 389 mL at 0.00 degrees Celcius and 775 mmHg, what is the molecular formula of the compound.

I know I need to convert those numbers so they can fit into the Ideal Gas law, I just don't know where to go from there.

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1. Find the mass of each element and convert to moles
nitrogen: (1.63 g x 0.3045) / 14.0 g/mol = x
oxygen: (1.63 g x 0.6955) / 16.0 g/mol = y

2. Find the simplest ratio of x to y to get the empirical formula of compound ( NxOy)
3. Find molar mass of empirical compound

4. Use ideal gas law to find moles (n) of compound n = PV/RT

5. Find molar mass of compound (1.63 g/ n = )

6. Divide molar mass by empirical molar mass to find factor with which to multiply subscripts of empirical formula to get formula of compound

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whoh! too much sciencey stuff! Im just gonna chill and do some biology...
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