Hydrogen and chlorine gas are placed in a 10.0 L container andallowed to react. The initial density of the mixture is 5.01 x10-3gm/ml. The vessel is at 300K and the initial pressure is 6.52 atm.After the reaction is complete , the pressure is 6.52 atm. The gasis bubbled into 1.00 liter of deionized water. In another part ofthe universe, a grey haired chemistry instructor prepares an aceticacid/ acetate buffer. The buffer was prepared by adding acetic acidand sodium acetate to 2.50 L of deionized water. Now, as universescollide, our hero adds 107 ml of the HCl solution to 405 ml of thebuffer. The pH is measured and is 4.35 after the HCl addition. Adrop of phenolphthalein is added and the solution is titrated toequivalence with 657 ml of 0.920 M NaOH. Calculate the originalmolarities of the weak acid and conjugate base in the 2.50 Lsolution?
