mH=1 u
mS=32 u
mNa=23 u
mO=16 u
mS=32 u
mMg=24 u
mN=14 u
mH2S=2*1u+32u=34 u
mNa2O=2*23u+16u=62 u
mNaOH=23u+16u+1u=40 u
mNa2SO4=2*23u+32u+4*16u=142u
mMgO=24u+16u=40 u
mMg(OH)2=24u+2*16u+2*1u=58 u
mMgSO3=24u+32u+3*16u=104 u
mNH3=14u+3*1u=17 u
mN2O5=2*14u+5*16u=108 u
mNaNO3=23u+14u+3*16u=85 u
m(NH4)2SO4=2*14u+8*1u+32u+4*16u=132u