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Explain the wall of the flask is periodically rinsed with the previously boiled, deionized water from the wash bottle. Explain how does this titrimetric technique affect the reported percent acetic acid in the vinegar? Explain
base catalyzed reaction of vanillin with acetic anhydride? They produce slightly different products, but how and why
what percent of the fuel consists of the lighter isotope? Assume that the masses of the two isotopes are exactly 235 and 238 amu.
the rate law for a hypothetical reaction is rateka2. when the concentration is .10 molesliter the rate is 2.7 times
For a particular redox reaction MnO2 is oxidized to MnO4- and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
MgO has the same crystal structure as NaCl, face-centered cubic. How many oxide ions surround each Mg^2+ ion as nearest neighbors
Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (\rm nm), where 1\;{\rm nm}= 10^{-9}\;{\rm m}. What is the energy of the X-rays
Calculate the slope of the straight line 2. What is the density of the substance 3. Briefly explain why it is more accurate to use the slope of the plot to determine the density than it is to use data from a single determination
the heat capacity of a bomb calorimeter is found to be 5.68 kjoc. when a 1.652 g sample of glucose is burned in the
Suppose that you have a reaction vessel containing an equilibrium mixture of CO(g), O2(g), and CO2(g). Under the following conditions, will the amount of CO increase, decrease, or remain the same?
the vapor pressure of water is 17.5 mmHg at 20 degrees Celcius, and 355.1 mmHg at 80 Celcius. Calculate the boiling point of water at 760 mm Hg.
calcium carbide cac2 can be made by heating calcium oxide lime with carbon charcoal.? caos 3 cs heat asdagger cac2s
The blue color of the sky results from the scattering of sunlight by molecules in the air. The blue light has a frequency of about 7.5x10^14 Hz, what is the wavelength in nm associated with this radiation
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