\(n_{CO_2}=\dfrac{6,72}{22,4}=0,3\left(mol\right)\); \(n_{KOH}=0,5.1=0,5\left(mol\right)\)
PTHH: 2KOH + CO2 --> K2CO3 + H2O
_______0,5-->0,25------>0,25___________(mol)
K2CO3 + CO2 + H2O --> 2KHCO3
_0,05<--0,05----------------->0,1___________(mol)
=> \(\left\{{}\begin{matrix}m_{K_2CO_3}=\left(0,25-0,05\right).138=27,6\left(g\right)\\m_{KHCO_3}=0,1.100=10\left(g\right)\end{matrix}\right.\)