Question

Să se afle masa de SO2 (dioxid de sulf) formată prin arderea a 340 grame de sulf de puritate 80%.

Answer 1

Răspuns:

100g S ........80gS pur

340gS..........xgS pur

x=340×80/100=272gS pur

MS/32g/mol

MSO2 =32+2×16=64g/mol

32g.............64g

S + O2 => SO2

272g...........yg

y=272×64/32=544gSO2