... ho6c 6,72 A.4,48 hoac 8,96 A 1, 0 rr PHAN RrtNG [10 caul ho[c_B) Thi sinh chi cluqrc chqn mQt hai phin ChuAn (10 cAu, tir ciu 41 cl€n cAu 50) A Theo chuang trinh Ciu 41: Cho sit nguy€n ch6t vao ... t6i gian, thi hg s6 cria HNOg ld A 10 B C.46 D 36 CAu 25: Cho c6c nguy6n trl X(Z :1 |),Y(Z :12 ),T(Z =19 ) Ddy duo-c x6p theo chiAu ting dAn bdn kinh tu ld Y, X, T C T, X, Y D X, T, Y A B X, Y, T Chu2 6: ... Y gdm hdn hqp KzCOr 0,2M vd 61r 111 0)2CO:-0,25M, thu duqc 57,58 garn kiit tUa PhAn tr[m vA ttrOi lugng cria CaCl2 X le D,46,65ya c.55,83yo 8.44 ,17 Yo A.53,35% Cf,u 21: Nhi-6t phdn hodn toin mu6i...