Acid base titration determination of Na2CO3 in Soda Ash
CO32- +H+ = HCO3-
HCO3- +H+ = H2CO3
Buffer by mixing acetic acid and sodium acetate.
The comparison indicator solution should match the analyticalsolution at the second equivalence point in three respects: pH,Ionic strength, color and intensity
A) Calculate the concentration of sodium acetate necessary toachieve the ionic strength in pre lab 4. ( Pre lab 4 calulation,the ionic strength that I have calculated is to be 0.1)
B) Calculate the concentration of acetic acid given the valuescalculated for A.
C) Calculate the mass of unknown to weight out in order toconsume 40 ml of 0.1 M HCL assuming the unknow is 35% by massNa2CO3.
For preview calculation where you calculate the mass of Na2CO3needed to consume 40 mL of 0.10 M HCL in a titration of Na2CO3 withHCL come out to be 0.212 gram needed to consume 40 mL of 0.10 M ofHCL.
