\(n_{CO_2}=\dfrac{0.672}{22.4}=0.03\left(mol\right)\)
\(ACO_3+2HCl\rightarrow ACl_2+CO_2+H_2O\)
Ta có :
\(n_{HCl}=2\cdot0.03=0.06\left(mol\right)\)
\(n_{H_2O}=0.03\left(mol\right)\)
Bảo toàn khối lượng :
\(m_{Muối}=1.84+0.06\cdot36.5-0.03\cdot44-0.03\cdot18=2.17\left(g\right)\)
ACO3 +2 HCl -> ACl2 + CO2 + H2O
Ta có: \(n_{ACO_3}=n_{CO_2}=0,03\left(mol\right)\\ \Rightarrow m_{muối}=m_{ACO_3}+\left(71-60\right).0,03=2,17\left(g\right)\)
=> CHỌN B