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The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0atm is 5084.3 kJ. If the change in heat energy is 5074.1 kJ explain how much work is done during the combustion?
What is the purpose of a hot filtration in a recrystallization. When would a hot filtration step not be necessary or useful in a purification by recrystallization? What experimental observation of the hot solution would let you know that it was no..
A sample of neon gas at 1.20 atm compresses from 250 mL to 125 mL. If the temperature remains constant, what is the final pressure
Calculate the potential of a platinum electrode immeresed in solution buffered to a pH of 6.50 and saturated with H2
A deepsea diver breathes compressed air with the partial pressure of N2 equal to 4.3 atm. Given the Henry's Law constant of 7.0 x 10^-4 mol/L*atm, calculate the concentration of N2 in the divers blood.
If phenolphthalein is used as an indicator for titrating Ca(OH)2 with titrant HCl instead of methyl orange, which is the recommended indicatory
Using Lewis electron-dot symbols to depict the monatomic ions formed from each of the following reactants, predict the formula of the compound the ions produce.
What was the percentage by mass of Mg(OH)2 in the original sample. When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride salt, water and CO2(g)
Capsaicin, the compound that gives the hot taste to chili peppers, has the formula C18H27NO3. (a) Calculate its molar mass.
Calibration and collection of equilibrium data are different experiment. Why could you use the calibration curve for getting equilibrium data?
A serving of kellogs corn flakes is 0.0892% K by mass. The USRDA for potassium is 6.0g. If one serving of corn flakes has a mass of 28.0g, and a volumeof 1.0 cups, how many cups would need to be consumed in order to eat the recommended daily allow..
What is the molar solubility of lead(II) chloride in a solution that also contains 0.15 M Cl- ions at 25 °C? The Ksp of PbCl2 is 1.6 × 10-5.
What factors determine if a compound will undergo solvolysis. Out of two compounds how would you be able to determine which one would undergo solvolysis the quickest
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