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Hello Sir/Ma'am, Good Evening. I have a query related to the plywood industry. They use wheat flour to cut the cost of phenol and urea. There is something i heard from someone that they can use some chemical powder which can be added to wheat flour to reduce the cost more and where they use 44kg of wheat flour after mixing this chemical powder this usage will be 20 to 25kg.
Using group 2 of the periodic table as an example, can you describe the variation in the following properties. Electronic configuration, Atomic radii and melting and boiling points.
State and explain the trend in first ionization energies shown by the elements with the atomic numbers 2,10 and 18.
Define the term first ionization energy
Plot the HETP versus the flow rate for following data:

Flow Rate (mL/min)
1) 120.2
2) 90.3
3) 71.8
4) 62.7
5) 50.2
6) 39.9
7) 31.7
8) 26.4

HETP (cm/plate)
1) 0.3154
2) 0.2343
3) 0.2248
4) 0.2378
5) 0.2274
6) 0.2991
7) 0.3206
8) 0.3503

(1) Identify on the graph the optimum flow rate, longitudinal diffusion, mass transfer

(2) Show a theoretical profile of Eddy diffusion on the same graph
Give 4 different reasons why capillary columns would have more theoretical plates than packed columns?
Consider a column of 300 mm long that has 600 theoretical plates. Suppose that the mobile phase volume of this column is 0.50 mL and the flow rate of the carrier gas is 1.5 mL/min.
a) Calculate the retention times and retention volume for analytes with k’ = 1 and k’ = 10
Briefly explain in no more than three sentences, how each of these factors will likely affect the retention time of a chromatographic process:

a) Increase the length of the column
b) Decrease carrier gas velocity
c) Increase the thickness of a stationary phase
d) Increase the internal diameter of a column
e) Setting the injection port temperature below the boiling point of the analyte
f) Setting the column temperature below the boiling point of the analyte
g) Significant diffusion of analyte in carrier gas
Consider a column of 300 mm long that has 600 theoretical plates. Suppose that the mobile phase volume of this column is 0.50 mL and the flow rate of the carrier gas is 1.5 mL/min.

a) Calculate the retention times and retention volume for analytes with k’ = 1 and k’ = 10
b) Calculate the peak width, W, for these analytes.
What isotope or ion has a mass of 11, 2 electrons and a charge of positive 2