% Analyte = weight of Analyte/weight of sample × G.F ×100/1
G.F is the gravimetric factor = substance sought / substance known.
1. Calculate the % sodium in a 0.721g detergent sample final Field is 0.320g NaP2O4.
2.A 0.2025 g sample consisting of only BaCl2 and KCl required 20.25 mL of 0.1200 M AgNO 3 solution for the quantitative precipitation of chloride.
Calculate the %K in the sample
Substituting the value;