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Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n = 6 to n = 1.
Suppose you have a glass tube which is 1 m long and 2.5 cm in diameter. Concentrated HCl acid is placed at one end of the tube and concentrated NH3 solution is placed at the other end.
Hydrogen gas was collected over water in a eudiometer at 25 C when the atmospheric pressure was 752 mm Hg. What was the pressure of the hydrogen gas?
the lower state was the ground state and the upper state was the first excited state for the flame tests of each metal atom you observed,
At a certain temperature the equilibrium pressure is .718 atm. Calculate Kp for the reaction
The equilibrium constant, Kp is 0.15 at 298 k for the reaction N2O4(g) 2 NO2(g) If the total pressure of the gas mixture at equilibrium
A solution was prepared by mixing 50.00 mL of 0.190 M HNO3 and 124.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
Why do primary alkyl halides typically undergo SN2 substitution reactions more rapidly than do secondary or tertiary alkyl halides?
which of the following accounts for the unusually high boiling point of water? the density of water, the hydrogen bonds in water
Calculate the molality of a sucrose (C12H22O11) solution containing 14.3 g of sucrose in 676 g of water.
Consider the following observations taken on successive, cloudless autumn mornings. On the first day, a considerable amount of frost is on the grass at sunrise. On the second day, only dew appears on the grass. On which day is the temperature incr..
a) Calculate the potential of the two cells. b) Write the overall balanced redox equations for the reactions above. c) Calculate ?G for the conditions given for reactions above.
Draw the three different isomers according to the number of C atoms in their main chain.
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