ChemistryMediumHigh School (11–12)Organic Chemistry: Some Basic Principles and Techniques › Purification and Analysis of Organic CompoundsA-LevelIB
Created by StemPy LabWhich compound cannot have all of its nitrogen found by the Kjeldahl method?
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← A food analyst digests 0.64 g of breakfast cereal by Kjeldahl's method. The ammonia given off uses up 32 mL of 0.14 mol/L hydrochloric acid. Find the nitrogen content of the cereal, in per cent by mass.A colourless liquid holds only carbon and hydrogen, 92.3 % and 7.7 % by mass. Its vapour is 39 times as dense as hydrogen gas. Which is its molecular formula? →
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