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when a metal was exposed to light at a frequency of 4.63*10^15 Hz, electrons were emitted with a kinetic energy of 3.10*10^-19 J. What is the maximum number of electrons that could be ejected from this metal by a burst of light (at some other frequency) with a total energy of 1.91*10^-?
Compute the vapor pressure at the temperature of 25 degree Celsius of H 2 O above a solution formed by mixing 100.
Please review the occurrence and cycling of calcium in nature, along with its use. Analyze and evaluate the article as to it's contemporary relevance regarding the elements availability, health implications and environmental impact.
Consider the base monosodium phosphate and Write the structure of the conjugate acid of this base- ineffective for extracting C7H6O2 from a diethyl ether solution.
The piston is then moved in and the heat rejected by the air reversibly at constant pressure until the volume is= initial volume. compute The net heat flow and the overall change in entropy?
Application of Avogadro's law - To evaluate the volume of a gas using Avogadro's Law.
Calculate the kinetic energy of the goose in joules if the goose has a mass of 16.8lb (pounds) and is flying at 10.3miles/h (miles per hour). ?
Krypton crystallizes as a fcc (face centered cubic unit cell) having an edge length of 559 pm. What is the density of solid Krypton?
Determine what would you use to prepare 10 ml of 0.2M CaCl 2 from the 20M stock solution and find out which solution is with pH > 7, but is not an Arrhenius base in the strict sense?
Determine what is Δ[Br- ]/Δt If Δ[BrO 3 - ]/Δt = 0.018 M/s express your answer in M/s?
Compute the molarity of a solution prepared by dissolving 15.2 grams of CaCl2 in H2O with a solution volume equal to 5.00 x 10² millimeters.
Compute the final temperature of the solution assuming no heat lost to the surroundings .the solution has a specific heat capacity =4.18 J/°C·?
Detremine the concentration of chromate solution - Potassium chromate has an absorbance value
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