Question

2,746g of a compound gave on analysis 1.94g of silver, 0.268g of sulphur and 0.538g of oxygen. Find the empirical formula of the compound.(At. Masses: Ag +108, S =32, O = 16).

Answer 1

$n_{A_g}=\frac{1.94}{108}\approx 0.018$

$h_s=\frac{0.268}{32}\approx 0008$

$h_0=\frac{0.538}{16}\approx 0.033$

$Ag:S:0=0.018:0.008:0.033$

$\approx 2:1:4$

$\therefore A{g}_{2}S{O}_4$