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A semiconductor of n-type is know to have an electron concentration of 3 x 10^18 m ^3 if the electron drift velocity is 100 m/s in an electric field of 500 V/m, calculate the conductivity of this material.
An acid solution is 0.100 M in HCl and 0.190 M in H2SO4.What volume of a 0.150 M KOH solution would have to be added to 550.0 mL of the acidic solution to neutralize completely all of the acid?
For the following reaction 2SO3(g)>2SO2 (g)+O2(g), the equlibrium constant Kp is 1.32 at 627 C. What is the equlibrium constant at 627 for the reaction SO2(g)+1/2O2.SO3(g)
a solution is prepared by adding 30.00 g of lactose milk sugar to 110.0 g of water at 55 degc. the partial pressure of
What is the molar mass of X if 0.85g of X depresses the freezing point of 100g of benzene by 0.47Cdegrees?
B)if water is added to 150ml of a 1.2M KCL solutionuntil the volume is 150 ml what is the new molarity?
In the stepwise trihalogenation process of the methyl group in acetophenone the methyl group is initially deprotonated. This deprotonated species which bears a negative charge on the carbon atom is stabilized by resonance.
Describe how you would prepare the buffer solution using one of the weak bases listed in the Table below and any other necessary reagents.
Name three compound types of organic compounds (families) that have the -C=O functional group but not the hydroxyl group.
What gas was evolved when you treated the acetone-bisulfite addition compound with hydrochloric acid?
A reaction has a standard free-energy change of -14.40 kJ mol-1 (-3.442 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C.
If the partial pressure of H2S is 0.539 atm, calculate the total pressure (atm) of the mixture visualized. I wasn't able to put the actual visualization but I will provide to the best of my ability what was given
The cell potential of the following electrochemical cell depends on the ph of the solution in the anode half-cell:
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