... http://bloghoahoc.com Chuyờn trang thi th Húa Trang 4/5 Mó thi 13 2 PHN TCH - HNG DN GII THI TH THPT VNH BO LN 1 B 11 D 21 C 31 D A 12 B 22 C 32 D D 13 A 23 C 33 C A 14 A 24 C 34 C C 15 A 25 ... 6H12O6 CuS den + H2SO4 - Phn ng: CuSO4 + H2S Cõu 39: Chn C mdd C6H12O6 C% - Ta cú: mAg 10 8.nAg 10 8.2 .h% 21, 6 (g) 18 0 http://bloghoahoc.com Chuyờn trang thi th Húa Trang 9/5 Mó thi 13 2 ... A 14 ,15 g B 15 ,35g C 15 ,78g D 14 ,58g Cõu 21: Hn hp X gm Mg, Al, Al2O3 v MgCO3 (trong ú oxi chim 25 ,15 7% v lng) Hũa tan ht 19 ,08 gam X dung dch cha 1, 32 mol NaHSO v x mol HNO3, kt thỳc phn ng thu...