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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.
In the haloform reaction, once the first alpha-hydrogen atom is replaced by a halogen atom, each successive hydrogen is more easily substituted
at a certain temperature an equilibrium mixture in a 10.0 l container was analyzed and found to contain 2.00 moles of
Calculate the concentration of a red dye solution with an absorbance of 0.617. If you have 5.78ml of the solution how many mg of red dye are found in the solution.
nitrosyl chloride decomposes according to the chemical equation below2noclg 2nogcl2gnbsp0.600atm of nitosyl chloride is
The concentration of Na^+ in a 0.73 M Na2CO3 solution is: (Assume complete dissaciation) A. 0.43 M B. 0.88 M C. 1.02 M D. 1.28 M E. 1.46 M
Explain how a change in the amount of a product causes a shift in equilibrium?
A water balloon with a volume of 260.0 L has launched at 20 degrees celcius at sea level where the atmospphereic pressure is 1.00 atm.
Many gaseous reactions occur in a car engine and exhaust system. One of the reactions is NO2(g)+CO(g)-->NO(g)+CO2(g). Given the following information determine the overall rate order. Rate=K[NO2]^m [CO]^n
Calculate the pH of a formic acid solution that contains 1.37% formic acid by mass. (assume the density of 1.01 g/mL for the solution
Describe how you would seperate a mixture containing acid and benzophenone (a neutral substance). Both compounds are insoluble in water and soluble in diethly ether.
If a bottle of nail polish remover contains 151 g of acetone, how much heat would be released by its complete combustion?
Given the values of Ka and Kb below, which of the systems given would be most suitable to use to construct a buffer of pH 9 and WHY
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