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An excited ion emits radiation at a wavelength of 647.0 nm in the visible range of the spectrum. Compute the frequency of a photon of the radiation. Explain what would be the energy of one photon of the radiation?
A 0.468 mol of O2 gas has a volume of 11.5 L at a certain temperature and pressure. If all this O2 were converted to ozone (O3) at the same temperature and pressure, what would be the volume of the ozone. 3O2?2O3
Determine the temperature change is caused by heat energy and using a beaker that contains 100 mL of H 2 O thermally insulated from its surroundings, one mol of solid CaCl 2 is mixed and solution is stirred
Why does it not make sense to think of sand as just being composed of a bunch of SiO2 molecules
Find free energy, entropy, enthalpy and volume of mixing for formation of 1.00 L of air from O2 and N2 at 298 K and 1 bar.
If a noxious green gas in a chamber is heated to 1.50 times its former temperature as well as the volume it occupies is doubled. Explain by what percentage does its pressure change and in what direction
Remember gasoline is merely a molecule made of carbon and hydrogen. Explain if the theoretical heat of combustion for gasoline is -48kJ/g, define how many kJ of energy are produced through the combustion one gallon of gasoline
suppose that an atmospheric chemist combines 165 of methane at stp 870 of oxygen at stp and 56.5 of at stp in a 1.8
Important information about Thermochemistry, Glauber's salt, sodium sulfate decahydrate (Na2SO4 * 10H2O) undergoes a phase transition (that is melting or freezing) at a convenient temp of 32 degrees C
Consider the reaction when aqueous solutions of ammonium sulfide and potassium nitrate are combined. The net ionic equation for this reaction is
If Ice melts at 273.15K with delta H fusion equaling 6.01kJ/ mol. An ice cube whose mass is 13.8 kg is dropped in a swimming pool whose temperature is held at 22.5 degrees Celsius.
The reaction (CH3)3 CBR+ OH------)(CH3)3 COH+Br in a certain solvent is first order with respect to (CH3)3 CBr and zero order with respect to OH. In several experiments, the rate constant k was determined at different temperatures. Determine the a..
Based on their available oxidation states, rank the following metals on their ability to catalyze this and other oxidation-reduction reactions. Rank from best to worst catalyst. To rank items as equivalent, overlap them.vanadium , titanium , manga..
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