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1. What is the wavelength of an electron whose linear velocity is 181.85 m/sec? 2. If all the energy is dissipated as light, how many photons per second are emitted by a 366 nm uv lamp rated at a power of 150 watts (1 watt = 1 J/sec)? Would a 150 watt tungsten lamp, which emits mainly visible light, produce more or fewer photons per second than the 366 nm lamp? 3. Calculate in hertz the broadening Δν of transitions in HCN at 25 C due to the Doppler effect in regions of the spectrum typical of rotational transitions (10 cm71), vibrational transitions (1500 cm71) and electronic transitions (60 000 cm71). 4. What is the value of kT in cm-1 at 300 K? What is the value of nj/ni if state j is this many cm-1 above state i? Assume both states are non-degenerate.
a soft drink contains 35 mg. of sodium in 315g. of h2o. what is the concentration of sodium in the soft drink in mass
1- how many moles ofnbsp naoh are required to prepare 5.00 l of 0.025 m solution?2-what would be the molarity of a
The solution to Equilibrium constant, A certain gas mixture held at 395C has the following initial partial pressures: P(Cl2) = 351.4 torr; P(CO) = 342.0 torr and P(COCl2) = 0.
What is the final pressure of a gas that has an initial pressure of 13atm and a volume of 20L. final volume 50
The reaction of methane and water is a way to prepare hydrogen according to CH4 (g) + H2O = Co2 (g) + H2 (g) a) If 995 g of CH4 reacts with 2510 g of water, how many moles of reactants and products are there when the reaction is finished
A mixture of 82.49 g of aluminum ( Picture = 26.98 g/mol) and 117.65 g of oxygen ( Picture = 32.00 g/mol) is allowed to react. Identify the limiting reactant and determine the mass of the excess reactant present in the vessel when the reaction is ..
Liquid water is fed to a boiler at 24°C and 10 bar and is converted at constant pressure to saturated steam. While operating, this process produces 10,000 m3/h of steam, which is discharged through a pipe with an inner diameter of 10 cm.
what will the concentration of all the reactants and products be when the reaction reaches equilibrium at 527 degrees C?
Determine the limiting reactant and the numbers of moles of Cu will be formed If you place .092 mol of iron filling in a solution containing .158 mol of Copper sulphate,?
A cylindrical gas chamber has a piston at one end that can be used to compress or expand the gas. If the gas is initially at 928.1 Torr and when the volume is 7.351 L, what will the pressure be in mmHg if the volume is adjusted to 3.570 L
Benzene (C6H6) is converted to cyclohexane (C6H12) by direct addition of hydrogen gas H2. The plant produces 100 Ib-moles/hr of cyclohexane. 90% of benzene fed to the process reacts to form cyclohexane.
Based on the steps occurring in an acid-base reaction, which definition of acids and bases is most practical
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