PTHH: \(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)
Ta có: \(n_{H_2SO_4}=3n_{Al_2O_3}=3\cdot\dfrac{15,3}{102}=0,45\left(mol\right)\) \(\Rightarrow C_{M_{H_2SO_4}}=\dfrac{0,45}{3}=0,15\left(M\right)\)
a) Al2O3 + 3H2SO4 ->Al2(SO4)3 + 3H2O
nAl2O3 = m/M = 15.3/102 = 0.15
CM H2SO4 = n/V = 0.45/3 = 0.15