ω(H)=1,38%

ω(Se)=54,48%

ω(O)=44,14%

Ar(H)=1

Ar(Se)=79

Ar(O)=16

H_xSe_yO_z

x:y:z=1,38/1:54,48/79:44,14/16=1,38:0,69:2,75=2:1:4

H₂SeO₄