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Twenty-five tons of coal that is 3.6% sulfur by mass is burned at an electric power plant. During the combustion of the coal, the sulfur is converted into sulfur dioxide. How many tons of sulfur dioxide are produced?
Rearrange the equation discovered by Balmer to solve for n2 (get n2 by itself): 1/? = R(1/2^2 - 1/n^2) where: ? = is the wavelength of the photon (E=hc/?) R = Rydberg's constant (1.0974x10^7 m^-1) n1 and n2 are integers where n2 > n1.
(The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively. The heat of fusion is 6.02 kJ/mol and heat of vaporization is 40.79 kJ/mol.)
Aluminum reacts with oxygen to make aluminum oxide. If 5.2 moles of aluminum react, how many moles of aluminum oxide are formed. Show work.
Determine the [OH-] of a solution that is 0.230 M in HCO3-. Also determine the pH of this solution.
solid NaI is slowly added to a solution that is 0.010 M in Cu+ and 0.010 M in Ag+. which compound will begin to precipitate first?
Describe the processes of fatty acid oxidation and synthesis in animal tissues, pointing out their similarities and differences
What mass of potassium carbonate K2CO3, must be weighed out to prepare 125.0mL of a 0.0500M solution of salt?
A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.
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)
A Venus probe detects an element with a first ionization energy of 2088. Given the table of known ionization energies provided in the introduction, what is the most likely identity of this element
Determine the molar mass of the nonelectrolyte if the osmotic pressure of the solution = 23.6 atm, also express your answerin g/mol?
Calculate the pH of a solution when 0.200 moles of solid NaOH is added to 2.00 liter of 0.250 M HCl. Assume no change in volume.
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