Ngày tải lên :
31/10/2015, 09:35
... 9,90 10, 00 10, 10 10, 20 A pH 10, 30 10, 40 10, 50 10, 60 10, 70 10, 80 0,861 0,871 0,878 0,885 0,906 0,918 0,919 0,920 0,916 0,895 0,873 0,853 0,950 0,920 0,890 0,860 0,830 0,800 9,4 9,8 10, 2 10, 6 11 ... t pH =9,70, t cc i v n nh khong pH = 10, 20 ữ 10, 50, sau ú bt u gim pH >10, 50 Do vy khong pH chit ti u l10,20 ữ 10, 50, cỏc phộp o nghiờn cu chit phc c thc hin pH= 10, 40 Nh vy chit phc: PAN - ... pH = 10, 40 2+ CPAN = 3,0 .10- 5 M, CNaNO = 0,1M, CMn = 2 .10- 5M Dung dch phc a ligan PAN - Mn(II) - CCl3COOH, pH = 10, 40: 2+ CPAN = 3,0 .10- 5 M, CNaNO =0,1M, CMn = 2,0 .10- 5M, CCCl3COOH = 3,0 .102 M...