1. Axit lactic có công thức cấu t...

- Hướng dẫn giải

Phương pháp giải:

Giải chi tiết:

1.

CH₃ – CH (OH) – COOH + 2Na → CH₃ – CH (ONa) – COONa + H₂

CH₃ – CH (OH) - COOH+ C₂H₅OH → CH₃ – CH (OH) – COOC₂H₅ + H₂O

CH₃ – CH (OH) - COOH+ KHCO₃ → CH₃ – CH (OH) – COOK + H₂O + CO₂

2.

\(\eqalign{
& \left\{ \matrix{
Al:x \hfill \cr
Fe:y \hfill \cr} \right.\buildrel { + HCl:0,2} \over
\longrightarrow \left\{ \matrix{
\uparrow {H_2} \hfill \cr
{\rm{dd}}\,A\buildrel { + NaOH:0,23} \over
\longrightarrow \left\{ \matrix{
\downarrow \buildrel { + {O_2},{t^o}} \over
\longrightarrow ran\,C\left\{ \matrix{
A{l_2}{O_3} \hfill \cr
F{e_2}{O_3} \hfill \cr} \right. \hfill \cr
{\rm{dd}}\,B \hfill \cr} \right. \hfill \cr} \right. \cr
& \left\{ \matrix{
\buildrel {BTNT\,Cl} \over
\longrightarrow NaCl:0,2 \hfill \cr
\buildrel {BTNT\,Na} \over
\longrightarrow NaAl{O_2}:0,03 \hfill \cr} \right. \to \left\{ \matrix{
\buildrel {BTNT\,Al} \over
\longrightarrow A{l_2}{O_3}:0,5(x - 0,13) \hfill \cr
\buildrel {BTNT\,Fe} \over
\longrightarrow F{e_2}{O_3}:0,5y \hfill \cr} \right. \cr
& \to \left\{ \matrix{
27x + 56y = 1,752 \hfill \cr
51(x - 0,03) + 80y = 1,47 \hfill \cr} \right. \to \left\{ \matrix{
x = 0,04 \hfill \cr
y = 0,012 \hfill \cr} \right. \to \left\{ \matrix{
\% Al = 61,64\% \hfill \cr
\% Fe = 38,36\% \hfill \cr} \right. \cr} \)