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Modern electron microscopy can emit a beam of electronswith a velocity of 1.5 x 108 m/s.1. What is the wavelength of an electron particle in thisbeam?2. Assume that you desire a minimum uncertainty in the position ofelectron of 10-10m. What is the maximum uncertainty that is acceptable in the momentum of the particle?
Show the Newman projection of chair-cyclohexane. From this structure, why is this the lowest energy-conformation
If 24g Mg is used and the percentage yield is 95%, how many grams of magnesium hydroxide should be recovered?
A radio wave has a frequency of 8.6 x 10^8 Hz. What is the energy of one photon of this radiation
a gas occupying a volume of 428 ml at a pressure of 0.970 atm is allowed to expand at constant temperature until its
You need to make an aqueous solution of 0.180 M sodium sulfate for an experiment in lab, using a 250 mL volumetric flask. How much solid sodium sulfate should you add ?
A .1155 L sample of an unknown HNO3 solution required 42.9mL of .10M of Ba(OH)2 for complete neutralization. What was the concentration of the HNO3 solution
Why do sigma bonds have lower energy than pi bonds and are stronger if bond strength increases with bond energy?
Calculate the average net charge on phenylalanine if it is in a solution that has a pH of 8.40 (If the charge is positive, you do not need to enter a \+ \" sign.)
Using the inverse square law of radiation, what Geiger counter reading would you get for a radioactive material when you are 3 feet from the source (assume an initial reading of 6300 R at a distance of 1 foot from the source)
Estimate the boiling point elevation of a saturated solution of LiF at 100 degrees Celsius, assuming it undergoes complete dissociation. The solubility of LiF is 230 mg/100 g of water at 100 degrees celsius, and the boiling point constant of water..
I- is oxidized by MnO4- in basic solution to yield I2 and MnO2. The coefficient on H2O in the balanced redox reaction will be
Identify which gas is in excess and by how much and calculate the volume of nitrogen produced.
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