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A sheet of steel 1.5 mm thick has nitrogen atmospheres on bothsides at 1200oC and is permitted to achieve asteady-state diffusion condition. the diffusion coefficient fornitrogen in steel at this temperature is 6 x 10-11m2/s, and the diffusion flux is found to be 1.2 x10-7 kg/m2s.Also, it is known that the concentration of nitrogen in the steelat the high-pressure surface 4 kg/m3.
How far into the sheet from this high-pressure side will theconcentration be 2.0kg/m3?
If 5.00 X 10^3kg each of ammonia, oxygen, and methane are reacted, what mass of HCN and water would be produced, assuming 100% yield?
A(aq) 2B(aq) Kc-7.97e-6 at 500K If a 3.40 M sample of A is heated to 500 K, what is the concentration of B at equilibrium
An alkyne of six carbon atoms gives the same single product in its reaction either with BH3 in THF followed by H2O2 /OH-, or with H2O/Hg2
What amount of chlorine gas is obtained by treating 80 g of magnesium dioxide in excess of HCl the following reaction. MnO2 + 4 HCl => MnCl2 + 2H2O + Cl
Find the equilibrium concentrations of A and B for a=1 and b=1. Assume that the initial concentration of is a= 1.0 and that no b is present at the beginning of the reaction.
Calculate the pH of a solution prepared by dissolving 18.32 grams of benzoic acid and 43.23 grams of sodium benzoate in water sufficient to yield 1.00 L of solution.
A buffer is prepared by dissolving HONH_2 and HONH_3NO_3 in some water. Write equation to show how this buffer neutralizes added H+ and OH-
Describe the fictional portrayals of the courtroom, including the trial process, the roles of the prosecution and defense, the roles of the courtroom participants (expand your response from the Week Five CheckPoint), and the handling or implementa..
How many moles of CaF2 will dissolve in 3.0 liters of 0.150 M NaF solution? (Ksp for CaF2 = 4.0 x 10-11).
Calculate the mass of propylene glycol that must be added to 0.360 of water to reduce the vapor pressure by 2.88 torr at 40°C (Pressure of H2O is 55.3 torr at 40°C ).
What mass of ammonium chloride should be added to 2.45L of a 0.145M NH3 in order to obtain a buffer with a pH of 9.45
Determine the number of electron pairs (both bonding pairs and lone pairs) on the iodine atom in the following.
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