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Using the Debye-Hucket equation, calculate the activity coefficients for the acidic and basic forms of bromocresol green, HX- and X2-, for a solution with an ionic strength of u=0.1M.
the soil test report show the following data cec 15
The reaction between ethyl iodide and hydroxide ion in ethanol (c2h5oh) solution, c2h5oh + oh --> c2h5oh + I, has an activation energy of 86.8 kj/mol and a frequency factor of 2.1 x 10^ 11
Explain what volume of a 0.550 M NH4I solution is needed to react with 759mL of a 0.280 M Pb(NO3)2 solution
In cooking over an open flame, a yellow flame is often observed when some food is spilled into the flame. What is most likely responsible for the yellow flame color
What is the pH of a solution created by mixing 200 mL of a 1.59 M NaHSO3 solution with 207 mL of a 1.11 M Na2SO3 solution
A brick consisting of pure metal measures 4.00 inches x 5.00 inches x 3.00 inches and weighs 7.020 kg. Using density, identify the metal in the brick.
A 31.43 ml volume of .108M NaOH is require to reach the phenolphthalein endpoint in the titration of a 4.441g sample of vinegar. Calcute the percent acetic acid in the vinegar.
Approximately how many grams of KCl are there in 200 mL of a 4.0% by mass KCl aqueous solution? Assume that the density of solution equals that of pure water.
Calculate the pressure that CCl4 will exert at 21°C if 1.00 mol occupies 18.2 L, assuming that CCl4 obeys the ideal-gas equation; CCl4 obeys the van der Waals equation.
What is the pH of a solution containing 0.10 L of 0.10 M acetic acid, to which 0.010 moles of acetate are added. Volume does change in this case. Density of the acetate salt is 55.05 g/mL
The mixture was gently stirred as the ice melted and the lowest temperature reached by the water was recorded. The cup and its contents were weighed again. The purpose of weighing the cup and its contents at the end of the experiment
When light of frequency 6.88×1015 s-1 shines on the surface of a metal, electrons are ejected with a maximum kinetic energy of 3.40×10-19 J. Calculate the wavelength of this light.
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