Question
Asked Dec 4, 2019
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A compound consists of 4.50 g of nitrogen for every 7.71 g of oxygen and has the same empirical and molecular formula. Identify the compound. 

a) NO2

b) N2O

c) N2O3

d) NO3

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Expert Answer

Step 1

The given mass of nitrogen = 4.50 g.

The given mass of oxygen = 7.71 g.

 

It is given that compound has same empirical and molecular formula.

Step 2

The molar mass of nitrogen is 14 g/mol.

The molar mass of oxygen is 16 g/mol.

 

The number of moles of nitrogen is calculated by the formula.

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Weight Moles Molar mass

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Step 3

Substitute the given value of mass and ...

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Weight Moles Molar mass 4.50 g 14 g /mol =0.321 mol

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