Odpowiedź :
mNa2SO4=2*23u+32u+4*16u=142 u
mCl2=2*35,5u=71 u
mS8=8*32u=256 u
mH2S=2*1u+32u=34 u
mNaBr=23u+80u=103 u
mCl2=2*35,5u=71 u
mMg3(PO4)2=3*24u+2*31u+8*16u=262 u
mNa2SO4=2*23u+32u+4*16u=142 u
mCl2=2*35,5u=71 u
mS8=8*32u=256 u
mH2S=2*1u+32u=34 u
mNaBr=23u+80u=103 u
mCl2=2*35,5u=71 u
mMg3(PO4)2=3*24u+2*31u+8*16u=262 u