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0.25 g of CuSO4 was added to 25 mL of deionized water. What wavelength of light would you recommend to characterize the solutions UV-Vis absorbance? Assuming that at this wavelength, the molar absorptivity of CuSO4 is 1.8 M/cm and the path length is 1 cm, calculate the percentage transmittance of the measured solution.
What is the activation energy for a reaction whose rate is tripled by a temperature increase from 22.5°C to 58.0°C?
If the reaction of 25.0 mL of 1.0 M HBr and 35.0 mL of 1.0 M KOH produces 1.45 kJ of heat, what is the change in entalpy of HBr + KOH per mole of water formed
Question- Consider the following cell: Pt|H2(g, 0.725 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.10 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V, calculate the hydrog..
How much ice (in grams) would have to melt to lower the temperature of 355 mL of water from 24 C to 6 C (Assume the density of water is 1.0g/ml.
Propose a mechanism for the Fischer esterification of m-nitrobenzene to form m-nitrobenzoate
Sodium hydroxide is slowly added to a 225 mL of a solution that is 3.0*10^-2 M Ba2+ and 1.5*10-3 M Cr3+. Which will precipitate first
What is a fractional distillation how is it different than a simple distillation in principle and in the apparatus used
What are the equilibrium concentrations of each of the gases? What is the value for the equilibrium constant Kc
What combustion products are produced when materials made from polyacrylonitrile smolder and burn?
Use Excel or your favorite spreadsheet program to generate the concentration profiles. You may either estimate the stability parameters using the attached plots or (better) use the attached parameterized forms.
A beaker with 185 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.70 mL of a 0.440 M HCl solution to the beaker.
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?
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