18%
水解率=水解淀粉的质量/总淀粉的质量*100%
CH2OH(CHOH)4CHO+2Ag(NH3)2OH→(水浴加热)CH2OH(CHOH)4COONH4+2Ag↓+3NH3↑+H2O
180 216
m(C6H12O6) 2.16g
m(C6H12O6) =1.8g
(C6H10O5)n +nH2O→nC6H12O6
162n 180n
m[(C6H10O5)n] 1.8g
m[(C6H10O5)n]=1.62g
水解淀粉的质量是1.62g,总淀粉的质量是9g,水解率=水解淀粉的质量/总淀粉的质量*100%
=1.62/9*100%=18%