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Hydrogen atoms are excited by a laser to the n=4 state and then allowed to emit. What is the maximum number of distinct emission spectral lines that can be observed from this system? Calculate the wavelength of the 4 to 1 transition in m.
Provides as many reasonable ways as possible of synthesizing 2-choloro-3-methylbutane as the major substrate product starting with substrates that contain 3 or more carbon atoms
The contents of the tank are transferred without loss to an evacuated 55 L tank in scold room where the temperature is 4 degree C . What is the pressure in the tank ?
In the procedure, you extracted sodium chloride from the insoluble silicon dioxide and calcium carbonate by dissolving the sodium chloride in distilled water. However, calcium carbonate is actually slightly soluble in water
Which of the following buffer systems would be the best choice to create a buffer with the pH= 9.00? For the best system , calculate the ratio of the masses of the buffer components required to make the buffer.
how many liters of C6H14(l) measured at 20 degC must be burned to provide enough heat to warm 26.9m^3 of water from 17.7 to 32.6degC .
Is the system consisting of the aluminum and the water a closed system? Explain your reasoning. If not, how much energy was lost or gained by the system during the experiment
what volume of dry H2 gas would theoretically be produced if it is measured at 20 degrees Celcius and 785 mmHg?
XH2O is heated and the mass of water lost is 1.42 g. Determine the formula of thehydrate.
H3PO4 behaves differently at different higher temperatures, give details of reaction that occurs at different temperatures
What fraction of thiocyanate ion is accually converted into the complex ion?
What time will it take 10.0 mL of Chlorine gas to effuse through a porous barrier when it has been noticed that 76.3 min are needed for 10.0 mL of Hydrochloric acid gas to effuse through the same barrier.
The amount of nitrogen in an organic substance can be determined by an analytical method, called the Kjeldahl method, in which all the nitrogen in the organic substance is converted to ammoinia.
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