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Problem- Consider the titration of 100.0 mL of 0.0200 M acetic acid (pKa = 4.76) with 0.100 M NaOH. Determine the pH at the equivalence point.
Illustrate structures to prove your interpretation.
In the year 2007, an estimated amount of 31 billion tons of carbon dioxide was emitted worldwide due to fossil fuel combustion and cement production. Express this mass of carbon dioxide in grams without exponential notation, using an appropriate m..
when 2.45 g of an unknown weak acid ha with a molar mass of 85.0g mol is dissolved in 250.0g of water the freezing
Calculate the lattice enthalpy (?Hl° in kJ/mol) of the MF2 metal fluoride using the following data: Bond dissociation enthalpy of F2(g) = 159 kJ/mol Electron affinity of F = -328 kJ/mol Enthalpy of sublimation of M = 123 kJ/mol First ionization en..
An extraction procedure specifies that an aqeuous solution containing dissoloved organic material be extracted twice with 10mL portions of diethyl ether.
Explain should the company change its advertising campaign and explain what about SIA's system for measuring service quality? Do you recommend any changes? Why or why not?
Find the pH and volume (mL) of 0.447 M HNO3 needed to reach the equivalence point(s) in the following titration. 0.188 L of 0.550 M NH3. 231L or 231mL is the about of HNO3 needed to reach equivalence, but I can not sort the pH.
What is the hydronium-ion concentration of a 0.40 M solution of HCN (Ka= 4.9×10-10) at 25° C?
Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 9.80 solution.
What is the strongest attractive force that must be overcome in order to do the following: a) melt pure solid phosphorus pentachloride b) boil pure liquid selenium tetrafluoride c) boil pure liquid methanol (CH3OH) d) sublime pure solid carbon dio..
Describe the technique you would use to deteremine the density of a 5 gram sample of gasonline or granular sugar at 20 degrees celcius and 1 atmosphere pressure
Solve an equilibrium problem (using an ICE table) to calculate the pH of 0.12M HF, 0.12M NaF, and a mixture that is 0.12M HF and 0.12M NaF.
consider the reaction H2S+I2>2HI with equilibruim K= 0.81 . if an initial concentration 1.0 M of each component is placed in close container, what will be the concentration of H2S at equilibruim
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