Suppose the vibrational energies are given as
Please assist with the attached file.
A laser used to read CDs emits red light of wavelength 700 nm. How many photons does the laser emit per second, if its power output is 0.10 W?
If a piece of Cu is bombarded by violet light (λ = 4,000 Å), will electrons be ejected?
The work function for Cu metal is 4.80 eV. If a piece of Cu is bombarded by violet light (λ = 4,000 Å), will electrons be ejected? "YES" or "NO" with supporting argument/calculation.
Problems involving moles in solute, oxidation numbers and concentration
Please see the attached file for the complete problems. 1. Calculate the moles of solute for the following solutions: 10mL of .898M KMnO4 100 mL of .651 M FeSO4 50.0 mL of .762 M FeSO4 20.0 Ml of 1.11 M K2Cr2O7 2. Write a net ionic equation for: -the precipitation reaction resulting form mixing a BaCl2 solution with ...continues
The isothermal compressibility of lead at 293 K is 2.21 × 10−6 atm−1. Calculate the pressure that must be applied in order to increase its density by 0.08 per cent.
Rate of Formation for Reaction with Michaelis-Menten Kinetics
Please see attached document for full description. Cr(NH3)5Cl 2+ reacts with OH- as follows Cr(NH3)5Cl 2+ + OH- ---> Cr(NH3)5OH 2+ + Cl- Time (mm) (Cr(NH3)5C12) (M) 0 1.00 3 0.81 6 0.66 9 0.53 10 0.50 12 0.43 15 ...continues
Question 1: A sheet of aluminum foil has a total area of 1.000 ft^2 and a mass of 3.626g. What is the thickness of the foil in millimeters (density of AL = 2.699 g/cm^3)? Question 2: In water conservation, chemistrs spread a thin film of certain inert materials over the surface of water to cut down on the rate of evapo ...continues
Estimate the pressure increase needed to decrease isothermally by 1% the volume of (a) a typical solid with k = 5x10-6 atm-1 (b) a typical liquid with k = 1x10-4 atm-1 where k = kappa
Ideal Gases : Reversible and Isothermal Expansions
For a certain ideal gas, Cv = 2.5R for all temperatures. Calculate q, w, ΔU and ΔH when 2.00 mol of this gas undergoes each of the following processes: (a) a reversible expansion at a constant pressure of 1 bar from a volume of 20.0 dm3 to 40.0 dm3. (b) a reversible isothermal compression from (0.50 bar, 40.0 dm3) ...continues
Gases, Temperature and Pressure
A 1.00-L bulb of methane at a pressure of 10.0 kPa is connected to a 3.00-L bulb of hydrogen at 20.0 kPa; both bulbs are at the same temperature. (a) After the gases mix, what is the total pressure? (b) What is the mole fraction of each component in the mixture? Every time I start to answer this question I always end up wit ...continues
