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An FM radio station broadcasts electromagnetic radiation at a frequency of 95.7*10^6 Hz. Calculate the wavelength of this radiation
buffer that has a pH of 9.80 and an osmotic pressure of 1.04atm at 298 K. What masses of HCN and NaCN should you use to prepare the buffer? mHCN, mNaCN =
one type of electromagnetic radiation has a frequency of 107.1 MHz another type has a wavelength of 2.12*10^-10m,and another type ofelectromagnetic radiation has photons with energy equal to 3.97*10^-19J/photon. identify each type of electromagnet..
A sample of mercury(II) oxide is placed in a 5.00 L evacuated container and heated until it decomposes entirely to mercury metal and oxygen gas
suppose that coal of density 1.5 gcm3 is pure carbon. it is in fact much more com- plicated but this is a reasonable
Arrange equimolar solutions of the following compounds in the increasing pH (lowest to highest). Explain your answer.
when two atoms of 2h deuterium are fused to form one atom of 4he helium the total energy evolved is 3.83 times 10-12
how many moles of nitrogen gas will be formed upon the complete reaction of 31.6 grams of nitrogen monoxide with excess hydrogen gas?
a solid acid is dissolved in enough water to make 200 ml of a solution. 40 ml of the solution is titrated to a phenolphthalein end point with an NaOH solution.
Calculate the value for the equilibrium constant Kp at this temperature. atm-2 If PN2 = 0.516 atm, PNH3 = 0.0172 atm, and PH2 = 0.00775 atm,
triangle symbol h degree 2816kj 6co2g 6h2o l c6h12o6s 6o2 g how is the equilibrium yeld of c6h12o6 affected bya.
If the process occurs adiabatically and at constant (atmospheric) pressure (a) what is the mass of water that solidifies and (b) what is the change in entropy of the system?
A. glycerol, C3H5(HO)3 is a nonvolitile molecular liquid that is very soluable in water. A solution is made by dissolving 75.0 g of glycerol in 350 g of water. What is the freezing point of the solution
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