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Question- alkali metals like na and k dissolve in liquid ammonia to give a blue solution which is due to the absorption of solvated electrons. as a crude model, we can treat the solvated electron as a particle in the box. Assuming that the absorbed light (600nm) excites the electron from its ground state to the excited state calculate L
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For the following reactions, identify the substance that is the oxidizing agent and the substance that is the reducing agent.
A human body contains 6 liters of blood. The hemoglobin content of blood is about 15.5g/100 mL of blood. The approximate hemoglobin molecular weight is 64,500g/mol. How many moles of hemoglobin are present in a typical adult
If 0.176 moles of Mg have combined with 0.220 moles of O, what is the empirical formula of the product?
At a local conveience stor, you purchase a cup of coffee, but at 98 degree celsius, it is too hot to drink. you add 23.0 g of ice that is -2.2 degree celsius to 248 ml of the coffee. what is the final temperature( in degree celsius) of the coffee
A piece of iodine is added to a dilute potassium hydroxide solution in a disproportination reaction. Write the unbalanced net ionic equation
Ben Franklin dropped the oil on the surface of a lake and found that 2 mL of oil gave a circle of radius 30 m. Estimate the volumetric size of an oil molecule in angstroms, give one significant digit.
consider the titration of 25 mL of .25 M NH3 with .05M HBr .What is the pH at the equivalence point?
Would the carbon atoms in a molecule such as stearic acid (C18H36O2) actually be expected to form a linear chain. Explain
During the distillation of a mixture of two miscible liquids with very different boiling points, the temperature rises to a constant reading and then drops off before returning to a higher reading. Explain the likely cause of this fluctuation in t..
A three component solution is made by adding 0.300 moles of CH3CN and 0.400 moles of C3H6O to 0.350 moles of CS2. The mixture behaves as an ideal mixture. What is the vapor pressure of the solution?
The 11B nucleus has a spin I of 3/2 and a nuclear g factor of 1.7920. At what field would resonance be observed at 60 MHz?
A compound has the empirical formula CH2O. When 0.0866 g is dissolved in 1.000 g of ether, the solution's boiling point is 36.5°C. Determine the molecular formula of this substance.
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