A complexation titradion with SOTA is performed to determine the amount of sulphate in a sample. A. 0.1557 s sample is dissolved in water and precipitated as Basoy by adding
Ba(NO_(3))
. The precipitate is fultired and washed EDTA. The excoss EDTA 25.0 mL of
0,0201m
EDTA ils
M,MgCl_(2)
is back titraties
4,4mL
of
MgCl_(2)
solution solution and to reach the end point. is consume to Na SSu in the Calculate the amount of Nag Slu in the weight. sample os a percentage by weigh