Other Chemistry Answers

Enlist the precautions that should be followed in taking water samples for

bacteriological analysis.

Give a graphical presentation of absorption spectral data indicating the max and

 values in it. Illustrated your answer.

Urea (H2NCONH2) is used extensively as a nitrogen source in fertilizers. It is produced commercially from the reaction of ammonia and carbon dioxide:



2NH3 (g) + CO2 (g)  H2NCONH2 (s) + H2O (g)

Ammonia gas at 223oC and 90 atm flows into a reactor at a rate of 500 L/min. Carbon dioxide at 223oC and 45 atm flows into the reactor at a rate of 600 L/min. What mass of urea is produced per minute by this reaction assuming 100% yield?

Enumerate the steps followed in measuring pH using a pH meter.

Describe the mechanism of ion exchange in ion exchange chromatography and

illustrate your answer.

Expand EDTA and write its structure. How is this reagent used in titrimetric

analysis? Explain.

Between x ray and gamma ray which of them is used more often in killing cancerous tumor and why.

discuss the origin of various spectral lines the rotational spectrum of a diatomic molecule.draw a suitable diagram also.

Write the principle involved in chemiluminescence and spectrometry for air pollutant determination. Also state the pollutants which can be analysed using these methods

illustrate the symmetry elements present in benzene molecule.what is its point Group?