a. PTKCO = 12 + 16 = 28(đvC)
b. \(PTK_{H_2SO_4}=1.2+32+16.4=98\left(đvC\right)\)
c. \(PTK_{Cu\left(OH\right)_2}=64+\left(16+1\right).2=98\left(đvC\right)\)
d. \(PTK_{Al_2\left(SO_4\right)_3}=27.2+\left(32+16.4\right).3=342\left(đvC\right)\)
e. \(PTK_{C_6H_{12}O_6}=12.6+1.12+16.6=180\left(đvC\right)\)