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Complete the following sentences concerning the energy level diagram for the hydrogen atom:
a) The energy levels in the H atom get closer as n ..........................
b) When n = infinity the energy separation of an electron from the nucleus is equal to the ........................... energy.
c) The equation relating the energy separation between levels in the H atom to the number of the level (n) is called the ...... ..................... equation.
How many potassium ions must a cell lose in order to produce a membrane potential of - 95 mV for potassium? How does this compare to the number of potassium ions within the cell
a 2.16-l sample of oxygen is collected at 99.6 kpa and 305k. if the pressure increases to 122.8 kpa and the temperature
Calculate the Ki for a competitive inhibitor whose concentration is 4.5 x10-4 M that increases the Km of the substrate by 23.5%
How long (in seconds) would it take a 50.0 watt (1 watt=1 J/s) heater to melt 10.12 g of Au(s) initially at its freezing point (1064 degrees C) to the boiling point (2807 degrees C) and then to completely vaporize it
If 3.93 g of sodium borohydride contains 2.5 × 10^23 H atoms, how many moles of H are present in 36 cm^3 of sodium borohydride (of density 1.074 g/cm^3)? Answer in units of mol
what is the expected theoretical equivalence volume for the titration of 25.00ml of 0.1000 m hcl with 0.09755 m naoh?
The annual production of zinc sulfide (ZnS) is 5.5 104 tons. Estimate the number of tons of SO2 produced by roasting it to extract zinc metal in TONS
Isoprophyl alcohol has a vapor pressure of 90 mm Hg at 40C. If its normal boiling point is 335 K, what is the vapor pressure of isopropyl alcohol at its normal boiling point
What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 (g/mL) for water.)
What is the empirical formula of a hydrocarbon if complete combustion or 5.900 mg of the hydrocarbon produced 19.201 mg of CO2 and 5.895 mg of H2O? Be sure to write C first in the formula.
Write balanced chemical equations and the solubility product expressions for the solubility equilibria of silver chloride and calcium phosphate.
what is/are the organic product(s) in the reaction below. draw a stepwise, detailed mechanism for the following reaction. a.) CH3C=C-CH3 + Br2
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