a) Bari sunfat: \(BaSO_4\)
\(\overline{M_{BaSO_4}}=137+32+4\cdot16=233\left(đvC\right)\)
b) Nhôm cacbonat: \(Al_2\left(CO_3\right)_3\)
\(\overline{M_{Al_2\left(CO_3\right)_3}}=2\cdot27+12\cdot3+16\cdot9=234\left(đvC\right)\)
a. CTHH: BaSO4
\(PTK_{BaSO_4}=137+32+16.4=233\left(đvC\right)\)
b. CTHH: Al2(CO3)3
\(PTK_{Al_2\left(CO_3\right)_3}=27.2+\left(12+16.3\right).3=234\left(đvC\right)\)