3.14. Dem triing ngung hon hgp gIm 22,5 gam glyxin va 44,5 gam alanin thu
dugc m gam protein vdi hieu suat moi phan ung la 80%. Vay m co gia tri la: A. 42,08 gam B. 38,40gam C. 49,20gam D. 52,60 gam
Ddp dn A
3.15. Co 3 chat long benzen, anilin, stiren, dung rieng biet trong 3 Ig mit nhan. Thuoc thir de phan biet 3 chit long tren la
A. Dung dich NaOH B. Giiy quy tim C. Dung dich phenolphtalein D. Nuoc brom
Ddp dn D
3.16. Cho m gam hon hgp X gom NH3, CH5N, C2H7N bilt s l mol NH3 bing s l mol
C2H7N dem dot chay hoan toan thu dugc 20,16 lit C02(dktc) va x mol H2O. Vay gia tri cua m va x la
A. 13,95g va 16,20g C. 16,20g va 13,95g B. 40,50g va 27,90g D. 27,90g va 40,50g
Ddp dn D
3.17. Thuy phan hoan toan Imol peptit X dugc cac amino axit A, B, C, D, E moi loai Imol. Neu thiiy phan timg phan X dugc cac dipeptit va tripeptit AD, DC, BE, DCB. Trinh tu cac amino axit trong X la
A. BCDEA B. DEBCA C. ADOBE D. EBACD
Ddp dn C
Bai 15. BAL THlTC HANH 2:
MOT SO TINH C H A T CUA AMIN, AMINO AXIT VA PROTEIN AMINO AXIT VA PROTEIN
A. MUC TIEU B A I HOC 1. Kiln thu'c 1. Kiln thu'c
• Bilt dugc muc dich, each tien hanh, quan sat va giai thich mot s l thi nghiem cu the.
• Phan img brom boa anilin
• Phan img cua glyxin vdi chit chi tbi. • Phan ling mau ciia protein voi Cu(0H)2.
2. KT nang
• Sir dung dung cu, boa chat de tiln hanh an toan, thanh cong cac thi nghiem. • Quan sat, mo ta hien tugng, van dung li thuylt d l giai thich cac hien tugng
va viet cac phuong trinh boa hpc. • Viet tuong trinh thi nghiem.
3. Tinh cam, thai do
• Biet each dieu che tir do sir dung hgp li hoa chat lugng nho.
• Thong qua boat dgng thi nghiem tao nen hiing thii khi hgc bp mon boa hpc.
B. C H U A N B! C U A GV VA HS
• G V: - May tmh, may chieu he thong cac cau hoi huong dan HS thuc hanh. Hoa chat: - Long trang tning. - Dung dich CUSO4
- Dung dich NaOH 10%. - Nuac cit.
- Dung dich NaOH 40%. - Glyxin - Quy tim.
- Dung dich anilin bao boa. Dung cu: - Ong nghiem, den con.
- Ong hiit nho gipt. (adsbygoogle = window.adsbygoogle || []).push({});
- Niit cao su CO lap ong thuy tinh vuot nhgn. - Bg gia thi nghiem.
• HS: - On tap tinh chat ciia cac chat trong chuong Amin, amino axit va protein.
C. TI^N TRINH DAY - HOC
Hogt dgng cua GV Hogt dgng cua HS