Recent content by BThomas1219

  1. B

    Calculating Equilibrium Constant and Making a Buffer with NH4Cl and NH3

    Just need some help starting out with the problem
  2. B

    Calculating Equilibrium Constant and Making a Buffer with NH4Cl and NH3

    Homework Statement Calculate the equilibrium constant if you are given gibbs energy for the following molecules NH3=-26kJ/mol H2O-237.13kJ/mol NH4+=-79.31kJ/mol OH-=157.3kJ/mol How many moles of NH4Cl must be added to 1.0L of 0.10M NH3 to make a buffer whose pH is 9.0...
  3. B

    Determine volume of HCl added to propionic acid to get pH=1

    Homework Statement Given 250ml of 0.1M HC3H5O2 (Ka=1.35E-5) What volume of a)1.0M HCl is needed to lower the pH to 1.00. b) 1.00M NaC3H5O2 raise pH to 4.00 Homework Equations pH=pKa-log (HA/A) ICE chart The Attempt at a Solution I used the ice chart for the dissociation of...