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1. A silicon sample is oxidized in dry O2 at 1200? C for one hour.
(a) What is the thickness of the oxide grown?
(b) How much additional time is required to grow 0.1 µm more oxide in wet O2 at 1200? C?
2. Find the parameter γ for the photoresists shown in Figure 2.13.
With the pressure held constant at 210 kPa, 49 mol of a monatomic ideal gas expands from an initial volume of to a final volume of (a) How much work was done by the gas during the expansion? (b) What were the initial and final temperatures of the ..
Problem- Water from a lake in an area with limestone bedrock has a chemical composition as follows- Calcium 95 mg L-1, Magnesium 12mg L-1, Sodium 17mg L-1, Potassium 4 mg L-1, Hydrogen carbonate (asHCO3-) 338 mg L-1, Sulphate (as SO4-2)7 mg L-1,Ch..
Calculate the average speed of an oxygen gas molecule, O2, at 21.0 degrees Celsius. Express your answer numerically in meters per second.
What would be an explanation/discussion of product isolation? In this case, we are conduction column Chromatography.
3 5L flasks fixed with pressure gauges and small valves, each contain 4 g of gas at 273K. Flask A has H2, B has He and C has CH4. Place in order of pressure
sodium hydroxide do you need to add to the volumetric flask before you dilute the solution to volume with distilled water?
This solution has an osmotic pressure of 2.60 atm at 25°C. If each molecule of the solute dissociates into two particles (in this solvent), what is the molar mass of this solute?
what is the volume of the gas in milliliters when the pressure and temperature of the gas sample are changed to 634 and
he worked up the reaction and isolated 2.4 g of MnCl2. What was his percent yield?
Calculate the % yield for the following reaction, based on the results regarding the synthesis of 2-iodooctane from 2-chlorooctane. Show all calculations. 2-chlorooctane(100mg) + NaI(excess) = 2-Iodooctane(75mg)
a sample of 1.0 mole of a perfect gas with cp= 20.8 JK -1 is initially at 3.25 atm and 310 k. It undergoes reversible adiabatic expansion until its pressure reaches 2.50 atm. calculate the final volume and temperature and the work done
Question- A solution is made by mixing 500.0 mL of 4.0 M NH3 and 500.0 mL of 0.40 M AgNO3. Ag+ reacts with NH3 to form AgNH3+ and Ag(NH3)2+ according to the equilibrium reactions
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