1. C

    buffer prep for engineers

    Hi guys I need to prepare an unroofing protocol. However, I haven't made buffers since undergrad (I'm an engineering RA since 2014) and humbly ask for a reference or advice where to start... So far I have the pure powders for glucose, NaCl KCl, MgCl2 and CaCl2 ,and made an order of these...
  2. V

    Help with Concentration Cells?

    Hello! Could someone please fill me in on concentration cells? Is the higher concentration the anode or the cathode? Here's why I'm confused: According to my book, these statements are false, The half-cell with the higher concentration of copper (II) ions must be the anode. The cell that has...
  3. C

    Le Chatelier's Principle and Galvanic Cells

    Are these answers correct? ---- Consider the following Galvanic cell at 291 Kelvin: Cu|Cu2+||Au3+|Au where the standard cell potential is 1.18 V. How will the following changes affect the potential of the cell? (Increase, Decrease, or No Change) a. Increase the mass of the Au b. Adding equal...