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Write equations that show the process for the first two ionization energies of tin. Express your answer as a chemical equation. Identify all of the phases in your answer
Calculate the pH of the solution that results when 20 ml of 0.100 M CH3COOH is mixed with 10.00 mL 0.200 M NaOH
Calculate the pH of 100 mL of .30 M NH3 before and after the addition of 4.0 g of NH4NO3 and account for the change. assume the volume remains constant
Derive the equation for the allowed energies of a particle in a one-dimensional box by assuming that the particle is described by standing deBroglie waves within the box. (ie. integral number of half-wavelengths fit into the box)
By appropriate K, MB, and CB analysis, calculate system pH and the amount of CaCO3(s) remaining on establishment of EQ. Show all pertinent work except arithmetic. (Assume a constant liquid-phase volume of 1.0 L.)
the mass of the flask is measured when the outside of the flask is wet. outside of the flask is dried before the mass
calculate the ph at the equivalence point for the titration of a solution containing 1250.0 mg of hilariamine mw
How many neutrons and protons are contained in the nucleus of this isotope?
what accounts for the large amount of ring strain in cyclopropane and cyclobutane? (Hint: what bond angle does an sp^y hybridized carbon prefer? What angles are necessary for each of the geometric shapes you are building?)
If the formation of a Grignard reagent does not begin spontaneously when Mg metal and a solution of an alkyl halide in ether are mixed, one sometimes adds a small amount of iodine to the flask. What substance is formed from the reaction of iodine ..
A 515 g piece of copper tubing is heated to 95.0°C and placed in an insulated vessel containing 57.0 g of water at 30.0°C.
Calculate how many milliliters of 0.100 M HCl shoule be added to how many grams of sodium acetate dihydrate (NaC2H3O2 x 2H2O) at 5 degrees C to prepare 250.0 mL of a 0.100 M buffer at a pH=5.00. At 5 degrees C
the 1918 influenza epidemic was the worst one on record. people infected early in the epidemic had a mild flu while
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