... axit HCI 0 ,15 M vd HzSO+ 0,i5M can ae trung hod 300m1 dungdich B chri'a h6n ho.p hai bazo NaOH 0,1M vd Ba(OH), 0,1M HA.450ml 8.200m1. C. 15 0m1. D' 300m1'CAu ... d6 vd tlng 6p suAt.Cdu 14 : Cho so'd6 phdn irng:CaCO: -+ CaC2 -+ CzLIt -& gt; vinyla,retilen -) cHr:cH-cH:cH2 -) caosubuna.56 pliAn rlng oxi ho6 - khir trong so'dO ... dign dQng cria pin diQn hori Cr-Ni la +0,51V vd E!.:* ,rr: +0,25Y' tinh Ef,z*rr .1; ?A. +0 ,13 5V. B.+0,26V. c. -0 ,13 5V' D' -0 ,26V'ca* iq, b6ich6y hoin...