Short Questions
Section outline
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Molecular Formula from Composition Data Page
A nitrogen oxide is 30.4% by mass nitrogen. The molecular formula could be ______ (NO / N2O4 / either NO2 or N2O4 / NO2)
(Atomic weight of N is 14 and that of O is 16). -
Mass Fraction to Mole Fraction Page
The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol \( x_M \) satisfies ________ (\( x_M < 0.5 \) / \( x_M = 0.5 \) / \( 0.5 < x_M < 0.64 \) / \( x_M \ge 0.64 \))
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Degree of Freedom Analysis for a Splitter Page
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Volume of Gas Required for a Given Composition Page
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Recovery of Oil by Extraction Page
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Drying of Solid Page
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Solubility of Salt Page
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Moles of a Compound for a Mass Fraction Page
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Molarity of Sulphuric Acid Solution Page