Answer to Question #161229 in Inorganic Chemistry for Hazel Ann S Tomas

Question #161229

An oxide of nitrogen contains 63.1% oxygen and has a molar mass of 76.0 g/mol. What is the molecular formula for this compound?


1
Expert's answer
2021-02-05T04:05:27-0500

Solution:

Take a hypothetical 100-gram sample of the gas and convert each fractional weight to moles.




Divide by the smaller number of moles:




Multiply by 2 to make integer ratios:

N2O3 This is the empirical formula.


Answer:

N2O3 has a molar mass of 76.0117 , so it is molecular formula too.



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