42. It has been established that the output signal of the IR analyzer at λ=1.68 µm is an additive function of the concentration of ammonia and ammonium carbonate, and at λ=2.19 µm – a function of the concentration of ammonia only, standard solutions of NH3 and (NH42)CO3 have the following optical density values:
Parameter Ammonia Ammonium carbonate
s, g/l 5.0 12.5 20.0 280 360 410
A2.19 0.150 0.330 0.510 - - -
A1.68 0.075 0.150 0.220 0.110 0.270 0.540
Determine the concentration (g/200 ml) of (NH4)2CO3 and NH3 in the solutions under study using the following data 1) A2.19=0.450 A1.68=0.380 2) A2.19=0.300 A1.68=0.380 3) A2.19= 0.210 A1.68=0.350
Solution for option number 1.
If the file does not open for you, install the Rar archiver program. Inside the archive, the solution is in WORD format.
No feedback yet