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at steady state the temperature profiles in a laminated system appear thus which material has the higher thermal
q1 what are the elements with eight electrons in their outermost energy shell are called asq2what are metalloidsq3 what
based on the activity series provided below which of the following reactions will occur spontaneously as written
the franck-hertz experiment demonstrated which of the followingnbspatoms colliding with electrons absorb energy in
calculate the energy of electron of wavelength 03 nm in joules and electron
a carbon-carbon single bond has a bond energy of approximately 348kjmole what wavelength of light is required to
calculate the wavelength in nanometers of the spectral line produced when an electron in a hydrogen atom undergoes the
calculation of energy associated with one mole of these photons in kj when frequency is givensome ir-rays emit a
calculation of wavelength of photon when energy of photon is givenwhat is the wavelength of a photon that has an energy
calculation of the activation energy in calmol for a recrystallisation reactionnbspif it takes 80 h to completely
an electron has an uncertainty in its position of 499 pm what is the uncertainty in its
suppose no mmol of solute a in vaq ml of aqueous solution is extracted with vorg ml of an immiscible organic solvent at
how many grams of mg must react with hcl in order to produce 400 ml of hydrogen gas at 22 degrees celsius and 102 barif
an unknown carbohydrate of formula c12h22o11 reacts with tollens reagent to form a silver mirror an a glycosidase has
Use a grid spacing of 50 mm. Using the implicit, finite-difference method with a time increment of I h, find the temperature distribution in the wall 5, 10. 50, and 100 h after introduction of the f
I need a detailed chemical engineering design of an absorption column and the regenerator for a CO2 absorber using 40 WT% MDEA as solvent AND 60 wt% H20.
The purpose of the experimental rig is to investigate the potential for cost savings on a large-scale process by optimising the standard operating cleaning procedure.
Lemonade Solution 2 is considered to be concentrated, and lemonade Solution 1 is considered to be dilute. Examine the two pictures in Model 1. List two ways to differentiate a concentrated solution
1. Plot one graph of absorbance at 340 nm against time for all four pieces of data 2. Calculate the initial rate (slope of the line) for each enzyme reaction.
1. Explain the chemical differences between cornstarch, potato starch and glycogen. 2. Describe other bonds present in carbohydrates apart from α-1,4- glycosidic bonds.
Find the empirical formula of a compound, given that a 48.5g sample of a compound is found to contain 1.75g C, and 46.749 Br.
Determine the liquid and vapor molar volumes, Vˆl and Vˆv, of pure n-butane and pure n-hexane at 5 bar and 300 K using the Redlich-Kwong equation of state:
Use correlation tables to predict an approximate value for the peaks you would expect to see in the 13C NMR spectrum of compound 3. For each signal predict how it would appear in DEPT-135, DEPT
Succinic acid (butanedioic acid, C4H6O4) is one of a new class of materials that is made from renewable resources instead of petroleum.
explain tertiary treatment of waste water to reduce water