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The energy levels the electron can occupy in the He+ ion can be calculated using the energy level equation. Calculate the energy in kJ/mol of the electron when it is in the n= 1 level. If the energy change is negative, include the minus sign. Express answer in scientific notation.
Calculate the mean potential energy and the mean kinetic energy of an electron in the ground state of a hydrogenic atom.
The formula for the determination of energy is e=hv=hc/lamba where h is planck's constant and c is the speed of light. what is the relationship between wavelength and energy?
Non-stretch fabric means the pressure inside the balloon equals the outside pressure at all times. Assume the temperature of the helium equals the outside air temperature. Take air to be (20 mol % oxygen, 80 mol % nitrogen). What mass of helium wa..
These air conditioners are recharged from stockpiled supplies of CFC-12. If each of the 100 million automobiles contains 1.1 kg of CFC-12 and leaks 25% of its CFC-12 into the atmosphere per year, how much Cl in kilograms is added to the atmosphere..
Which of these is a coefficient in this chemical reaction? P4s(s)+5o2(G) p4o10(S)
Zingerone (responsile for the pungent taste of ginger) is a naturally occurring compound, What orbitals are used to form the indicated bond? H3C-O
In situations where it is not possible to return samples to Earth for analysis, the presence of extraterrestrial life may be uncovered by making spectroscopic measurements.
The half life for the first order decay of 99Mo is 66.02 hours. How long will it take for a sample of 99Mo to decay
A solution of ethanol (C2H5OH) in water is prepared by dissolving 88.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 300.0 mL of solution. What is the molarity of the ethanol in this solution?
Calculate the total calories absorbed from the surroundings. D. ?H for Solution of KCl(s) in water: ?T for reaction D: -4°C Mass of KCl: 5.00 g Volume of water: 0.050 L
Aluminum metal shavings (3.200g) are placed in 60.00 mL of (6.00 M hydrochloric acid. 1.00 L of hydrogen gas is collected in a buret over at 20 degress celsius and 1 atm. P(H2O)=17.5 torr.
Draw the structural formulas for any three compunds with the molecular formula C4H10O. If its an alcohol, classify each alcohol as primary, secondary, or tertiary?
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