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Calculate the wavelength in nanometers for an electron that has been accelerated from rest through a potential change of 500V. I know that phtoeletric effect equation(KE=0.5mv^2)is involved but I would like a detailed explanation of the solving process.
A Power plant is the main point source of SO2 emissions for a 25 km2 area. Estimate the steady-state concentration of SO2 for this area from this point source given the following temperature data. Windspeed= 5km/hr.
Calculate the pH of 100. mL of 0.31 M NH3 before and after the addition of 4.5 g of NH4NO3, and account for the change. Assume that the volume remains constant.
If the freezing point constant for water is 1.86 ºC/m and assuming ideal conditions, determine the freezing point of a 0.0100 m aqueous solution of Na2SO4.
What absorption is diagnostic of benzophenone and not present in benzhydrol (give frequency and functional group); and what absorption is diagnostic of benzhydrol and not present in benzophenone
Problem- Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 8.90 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C? Use C..
Air bags are activated when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. This causes sodium azide (NaN3) to decompose explosively according to the following reaction.
A voltaic cell consists of an Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell. Calculate [Pb2+] when Ecell is 1.017 V and [Mn2+] = 0.589 M. Use reduction potential values of Mn2+ = -1.18 V and for Pb2+ = -0.13 V
What mass, in grams, of chlorine gas (Cl2) is contained in a 15.5 liter tank at 25.5 degrees Celsius and 1.98 atmospheres can you walk me through the steps?
What is the molarity of an HCl solution if 23.3 mL of the solution is required to react with .266 g of Na2CO3
an evacuated empty 276 ml glass bulb weighs 129.6375 g. filled with an unknown gas the bulb weighs 130.0318 g.
What are the equilibrium concentrations of Bi3+ ion and Cu(NH3)4 2+ complex ion. (Assume again that the concentrations of NH3 and OH- are buffered and will not change from their original values)
Why should reflux of the microscale reaction mixture be gentle, with the condensation ring remaining close to the surface of the liquid in the test tube.
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