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(a) Explain how the following factors affect spectrum linewidth of atomic spectroscopy shorter lifetime of excited state of the atom, decreasing temperature, increasing pressure. (b) Define the Doppler's effect on spectrum linewidth.
Using the concepts of equilibrium and Le Chatelier's principle, explain why oxygen moves from the air in the lungs to cells and carbon dioxide moves from cells to the air in the lungs.
The titration required 35.46 mL of 0.1052M Na2S2O3 solution. A faded price label on the gallon bottle read $0.79. The density of the bleaching solution was 1.10 g/mL Calculate the number of moles of S2O32- ion required for the titration
What is the rate constant for the reverse reaction at the same temperature?
What spectral features in the MS, CNMR, HNMR and IR of benzoic acid and methyl benzoate allow you to differentiate between them
A flask contains 0.180 of liquid bromine,. Determine the number of bromine molecules present in the flask.
A 60/40 percent sample of 1-butanol to cyclohexane is passed through a GC. Depict the schematic of what this might look like and identify each peak
calculate the enthalpy change for an isobraic change of steam from 0.8 MPa and 250 C to saturated liquid
10 logarithmic scale of hydrogen ion concentration Be careful If pH = -log [H+ ], what does [H+ ] equal? If the pH of an aqueous solution is 3.50 at 25 C, what is the hydroxide ion concentration?
When heated to 350 degrees C at 0.950atm, ammonium nitrate decomposes into the following gases: nitrogen, oxygen, and water. How many grams of ammonium nitrate are needed to produce 5.00 L of oxygen?
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?
If Delta H = -60.0 kJ and Delta S = -0.200 kJ/K, the reaction is spontaneous below a certain temperature. Calculate that temperature
If a 1.55g sample of zinc is heated with excess sulfur to form 2.31g of zinc sulfide, calculate the mass of sulfur used.
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