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Explain with which food label value will you compare your experimental result when computing the percent difference in your determination of energy content? Briefly describe
Calculate the energy in kJ/mol needed to remove the electron from n=1 in a mole of hydrogen atoms. what is this energy called?
A saturated solution of iron(II) hydroxide at 25°C contains 1.0 x 10-5 M Fe2+ ions. Determine the ?G° for the solution at this temperature.
The critical constants of ethane are Pc = 48.20 atm, Vc = 148 (cm^3)/mol, and Tc = 305.4 K. Calculate the van der Waals parameters of the gas, and estimate the radius of the molecules.
Draw the structure of dimesitylmethane, designate on its NMR spectrum all the hydrogens that are equivalent, and predict the relative intensities of all the peaks corresponding to these sets of equivalent hydrogens.
Draw the condensed structural formula of benzyl acetate and circle the acetic acid part and the phenol part
Determine which is the limiting reagent and how many grams of excess reagent remain unreacted. Calculate the theoretical yield of the reaction
how many grams of carbon dioxide are produced from the combustion of 250. g of ethanec3h8in the reaction
Calculate the mass of the precipitate formed when 2.27 L of 0.0820 M Ba(OH)2 is mixed with 3.06 L of 0.0664 M Na2SO4.
Calculate how many grams of sodium sulfide are formed if 2.00g of hydrogen sulfide is bubbled into a solution containing 2.00g of sodium hydroxide, assuming that the sodium sulfide made from the reaction is a 92.0% yield
Both anthracene and phenanthrene will undergo addition with Br2. Anthracene adds Br2 at the 9- and 10-position. Is this consistent with the MO(s) shown in the SHMO program?
If 3.1 mol of ethane (C2H6) undergo combus tion according to the unbalanced equation C2H6 + O2 -! CO2 + H2O, how much oxygen is required?
Calculate the heat evolved from a mixture of 14.6 L of sulfur dioxide at 1 atm and 294 K and 15 g of oxygen if the following reaction occurs: 2 SO2(g) + O2(g) ?? 2 SO3(g) ?H? = ?198 kJ
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