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Analyze the data if 0.0396g of purified naphthalene, which was collected from sublimation, is recovered from a 0.7g sample of the mixture and the percent recovery is 11.31%. The melting point range of purified naphthalene is 78-83 Celsius degree?
Determine the pH of the solution after adding 50 ml of base. Determine the pH of the solution at the equivalence point.
The activation energy of a certain reaction is 46.7 kJ/mol. At 28 C, the rate constant is .0150 s^-1. At what temperature in degrees Celsius would this reaction go twice as fast
Calculate the vapor pressure of a solution containing 25.3g of glycerin C3H8O3 in 125mL of water at 30.0C. The vapor pressure of pure water at this temperature is 31.8torr}. Assume that glycerin is not volatile and dissolves molecularly (i.e., it ..
copper metal has a density of 8.92 gcm cubed at 20 degrees c and 8.83 gcm cubed at 100 degrees c. calculate the change
State the organic products of each of the subsequent reactions show the structures of the reactants as well as products. If two stereoisomers are produced, depict both and label all sterogenic centers R or S as suitable.
why conceptually does the ground state for the particle in the box model correspond to n1 while for the harmonic
If the container is compressed to 2.40 \rm L and the temperature is increased to 36\, \rm ^{\circ}C, what is the new pressure, P_2, inside the container
if your lab partner added slightly too much water in step 5 of preparing the penny solution but then removed the
A blank carried through the same procedure gave an absorbance of 0.045. If molar absorptivity of the Cu-containing colored compound is 7900, what is the amount of Cu in the rock sample (in mg)
magnesium ions can be precipitated from seawater by theaddition of sodium hydroxide.how much sodium hydroxide in grams
The actual yield was 6.15 g of CaCO3. Calculate the limiting reagent and the percent yield. Explain and show all work in how you obtain your answer
The activation energy of the orginal pathway is 106 KJ/mol. What is the activation energy of the new pathway, all other factors being equal?
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