a)
Hợp chất có dạng
\(N{a_x}{O_y} \to x.I = y.II \to x:y = 2:1 \to N{a_2}O \to {M_{N{a_2}O}} = 23.2 + 16 = 62{\text{ đvC}}\)
b)
Hợp chất có dạng
\(Z{n_x}C{l_y} \to x.II = y.I \to x:y = 1:2 \to ZnC{l_2} \to {M_{ZnC{l_2}}} = 65 + 35,5.2 = 136{\text{ đvC}}\)
c)
Hợp chất có dạng
\(C{u_x}(OH){_y} \to x.II = y.I \to x:y = 1:2 \to Cu{(OH)_2}\)
\( \to {M_{Cu{{(OH)}_2}}} = 64 + 17.2 = 98\)
d)
\(F{e_x}{(N{O_3})_y} \to x.III = y.I \to x:y = 1:3 \to Fe{(N{O_3})_3}\)
\( \to {M_{Fe{{(N{O_3})}_3}}} = 56 + 62.3 = 242\)
e)
\(A{l_x}{(P{O_4})_y} \to III.x = IIIy \to x:y = 1:1 \to AlP{O_4} \to {M_{AlP{O_4}}} = 27 + 31 + 16.4 = 122\)
f)
\(C{a_x}{(S{O_4})_y} \to x.II = y.II \to x:y = 1:1 \to CaS{O_4}\)
\({M_{CaS{O_4}}} = 40 + 96 = 136\)
g)
\({P_x}{O_y} \to x.III = y.II \to x:y = 2:3 \to {P_2}{O_3} \to {M_{{P_2}{O_3}}} = 31.2 + 16.3 = 110{\text{ đvC}}\)
h) \({N_x}{H_y} \to III.x = I.y \to x:y = 1:3 \to N{H_3} \to {M_{N{H_3}}} = 14 + 1.3 = 17\)
i)
\(F{e_x}{(S{O_4})_y} \to III.x = II.y \to x:y = 2:3 \to F{e_2}{(S{O_4})_3}\)
\( \to {M_{F{e_2}{{(S{O_4})}_3}}} = 56.2 + 96.3 = 400\)
