... 13, 79 B 19, 70 C 7,88 D 23,64 thi i hc B nm 2012 Cõu 37: Hp th hon ton 2,24 lớt khớ CO2 (ktc) vo 750 ml dung dch Ba(OH)2 0,2M, thu c m gam kt ta Giỏ tr ca m l A 9, 85 B 29, 55 C 19, 70 D 39, 40 thi ... 2,364 D 3 ,94 0 thi i hc A nm 20 09 Bi 32 Hp th hon ton 0,672 lớt khớ CO2 (ktc) vo lớt dung dch gm NaOH 0,025M v Ca(OH)20,0125M, thu c x gam kt ta Giỏ tr ca x l A 2,00 B 0,75 C 1,00 D 1,25 thi i hc ... A 19, 70 B 17,73 C 9, 85 D 11,82 thi i hc A nm 2008 Cõu 31 Cho 0,448 lớt khớ CO2 ( ktc) hp th ht vo 100 ml dung dch cha hn hp NaOH 0,06M v Ba(OH)2 0,12M, thu c m gam kt ta Giỏ tr ca m l A 1 ,97 0...