-$PTK_{Na_2CO_3}=23.2+12+16.3=106 (đvC)$
-$PTK_{Fe(OH)_3}=56+(1+16).3=107 (đvC)$
-$PTK_{Na_2SO_4}=23.2+32+16.4=142 (đvC)$
-$PTK_{Cu(OH)_2}=64+(1+16).2=98 (đvC)$
-$PTK_{Ca_3(PO_4)_2}=40.3+(31+16.4).2=310 (đvC)$
-$PTK_{CuSO_4}=64+32+16.4=160 (đvC)$
-$PTK_{O_2}=16.2=32 (đvC)$
-$PTK_{KMnO_4}=39+55+16.4=158 (đvC)$
-$PTK_{Al_2O_3}=27.2+16.3=102 (đvC)$
-$PTK_{H_2SO_4}=2.1+32+16.4=98 (đvC)$
-$PTK_{Na_3PO_4}=23.3+31+16.4=164(đvC)$
-$PTK_{AlCl_3}=27+35,5.3=133,5 (đvC)$
-------------------Nguyễn Hoạt--------------------