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Questions related from Zaid Assaf
Say we had a buffer of an unknown concentration. What's the best way to do the assay? For a buffer [HA] and its conjugate base [A-] at pH=pKa, [HA]=[A-]. If we were to assay using titration,...
14 April 2020 3,174 0 View
Water absorbs CO2 from the atmosphere and forms H2CO3. Carbonic acid in turn dissociates because it's a weak acid. If we were to measure the pKa of another weak acid in water that contains H2CO3...
02 March 2019 6,427 2 View
What would be an accurate method to measure the enthalpy of crystallization of a crystalline powder e.g Phenobarbital. DSC was my first thought, however, the lattice energy = Hfusion+ Hvap....
02 October 2018 3,245 3 View
What is the origin of the shift (up) in the baseline of the UV-VIS spectrum as noticed from 300 nm to 800 nm in the screenshot attached? I'm measuring phenobarbital in 0.2 NaOH against 0.2 NaOH...
08 August 2018 3,838 17 View
