... 2x).0,6 + 0, 015 .0, 4.2 = 0 ,19 2 x = 0 ,12 Vy m = 2(342n mantôzơ + 16 2n tinh bột ) = 49 ,14 (g) B THI TH, TI LIU THPT QUC GIA NM 2 017 MI NHT Bờn mỡnh ang cú b thi th THPTQG nm 2 017 mi nht t cỏc trng ... giỏ tr no nht sau õy? A 14 ,15 g B 15 ,35g C 15 ,78g D 14 ,58g Cõu 21: Hn hp X gm Mg, Al, Al 2O3 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 ... hũa cú lng 17 1,36 gam v hn hp khớ Z gm CO2, N2O, H2 T ca Z so vi He bng 7,5 Cho dung dch NaOH d vo Y, thu c 19 ,72 gam kt ta Giỏ tr ca x l : A 0 ,10 B 0 ,18 C 0 ,16 D 0 ,12 Cõu 22: t chỏy 16 ,8 gam bt...