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A strong line in the spectrum of atomic mercury has a wavelength of 254 nm. While mercury emits a photon of light at this wavelength, the frequency of this light is 8.46 x 10-16s-1 7.61 x 105 s-1 1.18 x 1015 s-1 1.31 x 10-6 s
What is the concentration of each species present when equilibrium is reached? b. What is the value of Kc for this reaction at 500K?
A gas-filled balloon having a volume of 4.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 multiplied by 10-3 atm, respectively. Calcula..
calculate the amount of heat required to completely sublime 51.0 g of solid dry ice co2 at its sublimation temperature.
what will be the final concentration of the seawater at 20 °C when reverse osmosis stops? Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate how many liters of seawater are needed to produce 15...
Demonstrate that if 100 ml of a solution of 5 g of A in water were extracted with two 25 ml portions of ether a smaller amount of A would remain in the water than if the solution were extracted with one 50 ml portion of ether.
Calculate the freezing point of a 2.00 molal solution of the nonelectrolyte glucose. The freezing point constant for water is 1.86 °C/molal.
what is the theoretical yield of calcium carbonate if 2.05 grams of calcium chloride dihydrate reacts with excess
How many constitutionally isomeric monochlorides are capable of being formed in the free-radical chlorination of 2,4-dimethylpentane
The pH of a 0.55 M aqueous solution of hypobromous acid, HBrO, at 25.0 °C is 4.48. What is the value of Ka for HBrO
Compute the standard enthalpy of formation of gaseous diborane (B2H6) using the following thermo chemical information: 4B (s) + 3O2 (g) ==> 2B2O3 (s) change in H= -2509.1 kJ
in the barium chloride laboratory activity what change occurred in the physical appearance of the barium chloride
Then the gas is cooled at a constant volume of 25.0L back to its original temperature. Then it contracts back at a constant tempurature to its original volume. Find the total heat flow for the entire process.
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