A Gaseous Compound Is 30

question 89

Multiple Choice

A gaseous compound is 30.4% nitrogen and 69.6% oxygen by mass.A 5.25-g sample of the gas occupies a volume of 1.00 L and exerts a pressure of 1.26 atm at -4.0°C.Which of these choices is its molecular formula?

• A)NO
• B)NO₂
• C)N₃O₆
• D)N₂O₄
• E)N₂O₅

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