Organic Chemistry — Some Basic Principles
Explore the interactive model.
Apparatus ko rotate karo; inlet, flask, gas bulb ya burette meniscus par tap karke experiment trigger karo.
Dumas’ combustion aur Kjeldahl’s digestion ko ek hi interactive 3D bench par dekho. Pehle CO2 gas se apparatus purge karo, taaki initial air bina nitrogen add kiye nikle; phir CuO furnace chalao, KOH CO2 absorb karta hai, bacha N2 volume measure karke temperature aur pressure se STP par correct karo, ya conc H2SO4 digest karke liberated NH3 ko trap aur condenser se receiver tak bhejo. Receiver mein standard HCl ya boric acid choose karke titration endpoint tak meniscus le jao; model har step par apparatus, gases, absorbed products aur calculated nitrogen amount ko live update karta hai.
In Dumas’ method, why must the nitrogen bulb be placed after the KOH or soda-lime absorber and the anhydrous CaCl2 trap?