Ctel
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Ctct
T m t n v ctct c a X? 3. t ch y ho n to n 7 4 gam este X n ch c thu c 6 72 l t kh CO2 ktc v 5 4 gam H2O. X c nh ctpt c a X? 4. Vi t pthh khi cho dd NaOH l n l t t c d ng v i etyl axetat metyl axetat metyl fomat ...
Ctct