1) w(k)=16,08%, w(pt)=40,16%, w(cl)=43,76% 2) - вопрос №8570854116084016437626207275910 от saha202000 11.08.2020 12:56

Question

Химия: 1) w(k)=16,08%, w(pt)=40,16%, w(cl)=43,76% 2) w(c)=62,07%, w(o)=27,59%, w(h)=10,34% 3) w(na)=37,7%, w(si)=23%, w(o)=39,3% 4) w(k)=31%, w(b)=8,7%, w(f)=60,3%

saha202000 · Answer

K: Pt: :C=16,08/39: 40,16/195 : 43,76/35,5=0,412 :0,206 :1,23=2:1:6   К2PtО6 C: O: H=62,07/12  : 27,59/16  : 10,34/1=5,17 :1,72 :10,34=3:1:6          С3ОН6...