(4) 
Solution : CuClo = 2.16 GV'} ; HCI = 1.460 GV 2, (N/10). 
Temps Nombre Poids du zinc Perte de poids du zine 
en "de 
REUICS séries. En n. Fe Ar Tee Ent 
| 1 42,4771 7,1863 5,2908 
2 12,5663 7,594 5,4069 
2 25,0434 14,3457 40,6977 42,72 
2 1 19,5604 6,4996 6,0608 
2 42,6667 6,6014 6,0653 
9 959974 | 434010 | 4124964 48.07 
3 4 12,5067 6,371 6,1353 
2 12,5894 6,4467 6,1427 
2 25,0961 12,8181 19,2780 48.92 
4 4 12,5990 6,2782 6,3208 
2 12,597 6,3160 6,2811 
2 25,1961 12,5942 12,6019 50.01 
6) 1 42,5160 6,2092 6,3668 
2 12,5$58 6,2862 6,2996 
2 25,1618 12,4954 12,6664 00.34 
6 | 42,6714 6,1997 6,4717 
2 12,6495 6,1639 6,:856 
2 25,3209 142,3636 49,9573 91.17 
46 1 42,6684 ,4047 7,2637 
2 19,6414 5,1242 6,9172 
9 25,3098 11,1289 44,1809 56.03 
