Determine the energy difference for an electron
Determine the energy difference for an electron transitioning from the 2nd energy level to the 4th energy level? What is this transition called?
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Rico owns $26,250 worth of XYZ's stock. Find rate of return is he anticipating? Assume Rico invests in ABC Co and utilizes homemade leverage. Determine the total cash flow and rate of return.
Determine the ph of the solution that results when 20 ml of .2MHCO2H (it's a monoprotic acid) Ka= 1.80*10^-4 is mixed with the 25 ml of .16 NaOH.
Determine what is being oxidized and what is being reduced in the following reaction, and tell how many electrons are being transferred:
We have the training program designed to upgrade the teaching skills of special education teachers. Because the program is self-administered, teachers need different numbers of hours to complete the program.
A new drug has been developed that is found to relieve nasal congestion in 90 percent of those with condition. The new drug is administered to 300 patients with this situation. Determine the probability that more than 265 patients will be relieved
The container's volume is increased to 4.0L at constant temperature and the liquid/vapor equilibrium is reestablished. A sample of CH4 in equilibrium with its vapor in a closed 2.0L container has a vapor pressure of 75.0 torr at 25degrees Ce
Explain how much ice must be added to the cauldron in order to cool the water to 20oC? A cauldron contains 12 gallons of water at 90oC. The enthalpy of ice relative to liquid water at 0oC is -348 kJ/kg. (Assume no heat is lost to surroundings).
What is the pressure in mmHg if the pressure of an unknown gas is calculated with a manometer. Instead of mercury the manometer is filled with a liquid (X) whose density is 0.737 g/cc. The pressure is measured as 645 mmX.
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