[hóa 12]este

T

thuhai1994

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smileandhappy1995

thuy phan o,1(mol) este X cua 1 ancol da chuc va 1 axit don chuc can dung 100ml dung dich NAOH 3M. mat khac khi thuy phan 6,35 (g) este do can 3(g) NAOH. tim ctct cua X
ta có : $n_{NaOH}$=0,3mol \Rightarrow ancol 3 chức (glixerol)
TN2: $n_{NaOH}=0,075mol$\Rightarrow $n_{este}=0,025mol$
\Rightarrow M=254
\RightarrowCTCT : $(C_2H_3COO)_3C_3H_5$
 
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