mAg2S=2*108u+32u=248 u
mZnCl2=65u+2*35,5u=137 u
mCu2S=2*63,5u+32u=159 u
mAlCl3=27u+3*35,5u=133,5u
mSO2=32u+2*16u=64 u
mP2O5=2*31u+5*16u=142 u
mSO3=32u+3*16u=80 u
mAl2S3=2*27u+3*32u=150 u
