Question

Ajutor la chimie ! ​

Answer 1

Răspuns:

Explicație:

SO2

MSO2=AS+2AO=32+2*16=64 g/mol

64g SO2....32 gS......32 gO

100 g             %S     % O

%S=100*32/64=50

% O=100-%S=50      

    Ca(NO3)2

M =ACa+2AN+6AO=40+2*14+6*16= 40+28+96=164 g/mol

164g ......40 gCa.....28 g N......96 gO

100          %Ca ........%N........%O

%Ca=100*40/164=24,39,

%N=100 *28/164=17,07

%O=100*96/164=58,53