Hấp thụ hoàn toàn 8,96 lít CO2 (đktc) v...

A

- Hướng dẫn giải

\( + \,\,\left\{ \begin{gathered} \left\{ \begin{gathered} NaOH:\,\,0,25 \hfill \\ KOH:\,\,0,3 \hfill \\ \end{gathered} \right\} + \underbrace {C{O_2}}_{0,4}\overset {quy\,\,doi} \leftrightarrows \left\{ \begin{gathered} NaOH:\,\,0,25 \hfill \\ KOH:\,\,0,3 \hfill \\ \end{gathered} \right\} + \underbrace {{H_2}C{O_3}}_{0,4}\xrightarrow{{}}chat\,\,\tan + \underbrace {HOH}_{0,55} \hfill \\ BTKL:\,\,{m_{chat\,\,\tan }} = {m_{bazo}} + {m_{{H_2}C{O_3}}} - {m_{{H_2}O}} = \boxed{41,7\,\,gam} \hfill \\ \end{gathered} \right.\)